Abiathar in the Bible

1. High priest. Called AHIMELECH in

2 Samuel 8:17 And Zadok the son of Ahitub, and Ahimelech the son of Abiathar, were the priests; and Seraiah was the scribe;
1 Chronicles 24:3 And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service.
1 Chronicles 24:6 And Shemaiah the son of Nethaneel the scribe, one of the Levites, wrote them before the king, and the princes, and Zadok the priest, and Ahimelech the son of Abiathar, and before the chief of the fathers of the priests and Levites: one principal household being taken for Eleazar, and one taken for Ithamar.
1 Chronicles 24:31 These likewise cast lots over against their brethren the sons of Aaron in the presence of David the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, even the principal fathers over against their younger brethren.

⇒Bible Encyclopedia for ABIATHAR.

And ABIMELECH

1 Chronicles 18:16 And Zadok the son of Ahitub, and Abimelech the son of Abiathar, were the priests; and Shavsha was scribe;

Son of Ahimelech

1 Samuel 22:20 And one of the sons of Ahimelech the son of Ahitub, named Abiathar, escaped, and fled after David.

Escapes to David from the vengeance of Saul, who slew the priests in the City of Nob

1 Samuel 22:20-23 And one of the sons of Ahimelech the son of Ahitub, named Abiathar, escaped, and fled after David. 21 And Abiathar shewed David that Saul had slain the LORD'S priests. 22 And David said unto Abiathar, I knew it that day, when Doeg the Edomite was there, that he would surely tell Saul: I have occasioned the death of all the persons of thy father's house. 23 Abide thou with me, fear not: for he that seeketh my life seeketh thy life: but with me thou shalt be in safeguard.
1 Samuel 22:6-19 When Saul heard that David was discovered, and the men that were with him, (now Saul abode in Gibeah under a tree in Ramah, having his spear in his hand, and all his servants were standing about him;) 7 Then Saul said unto his servants that stood about him, Hear now, ye Benjamites; will the son of Jesse give every one of you fields and vineyards, and make you all captains of thousands, and captains of hundreds; 8 That all of you have conspired against me, and there is none that sheweth me that my son hath made a league with the son of Jesse, and there is none of you that is sorry for me, or sheweth unto me that my son hath stirred up my servant against me, to lie in wait, as at this day? 9 Then answered Doeg the Edomite, which was set over the servants of Saul, and said, I saw the son of Jesse coming to Nob, to Ahimelech the son of Ahitub. ...

Consults the ephod for David

1 Samuel 22:9-12 Then answered Doeg the Edomite, which was set over the servants of Saul, and said, I saw the son of Jesse coming to Nob, to Ahimelech the son of Ahitub. 10 And he inquired of the LORD for him, and gave him victuals, and gave him the sword of Goliath the Philistine. 11 Then the king sent to call Ahimelech the priest, the son of Ahitub, and all his father's house, the priests that were in Nob: and they came all of them to the king. 12 And Saul said, Hear now, thou son of Ahitub. And he answered, Here I am, my lord.
1 Samuel 30:9-12 So David went, he and the six hundred men that were with him, and came to the brook Besor, where those that were left behind stayed. 10 But David pursued, he and four hundred men: for two hundred abode behind, which were so faint that they could not go over the brook Besor. 11 And they found an Egyptian in the field, and brought him to David, and gave him bread, and he did eat; and they made him drink water; 12 And they gave him a piece of a cake of figs, and two clusters of raisins: and when he had eaten, his spirit came again to him: for he had eaten no bread, nor drunk any water, three days and three nights.

Associate high priest with Zadok in the reign of David

2 Samuel 15:35 And hast thou not there with thee Zadok and Abiathar the priests? therefore it shall be, that what thing soever thou shalt hear out of the king's house, thou shalt tell it to Zadok and Abiathar the priests.
2 Samuel 20:25 And Sheva was scribe: and Zadok and Abiathar were the priests:
1 Kings 4:4 And Benaiah the son of Jehoiada was over the host: and Zadok and Abiathar were the priests:
1 Chronicles 15:11 And David called for Zadok and Abiathar the priests, and for the Levites, for Uriel, Asaiah, and Joel, Shemaiah, and Eliel, and Amminadab,

But called AHIMELECH and father of Abiathar

2 Samuel 8:17 And Zadok the son of Ahitub, and Ahimelech the son of Abiathar, were the priests; and Seraiah was the scribe;
1 Chronicles 18:16 And Zadok the son of Ahitub, and Abimelech the son of Abiathar, were the priests; and Shavsha was scribe;

Loyal to David when Absalom rebelled; leaves Jerusalem with the ark of the covenant, but is directed by David to return with the ark

2 Samuel 15:24-29 And lo Zadok also, and all the Levites were with him, bearing the ark of the covenant of God: and they set down the ark of God; and Abiathar went up, until all the people had done passing out of the city. 25 And the king said unto Zadok, Carry back the ark of God into the city: if I shall find favour in the eyes of the LORD, he will bring me again, and shew me both it, and his habitation: 26 But if he thus say, I have no delight in thee; behold, here am I, let him do to me as seemeth good unto him. 27 The king said also unto Zadok the priest, Art not thou a seer? return into the city in peace, and your two sons with you, Ahimaaz thy son, and Jonathan the son of Abiathar. ...

Helps David by sending his son from Jerusalem to David with secret information concerning the counsel of Ahithophel

2 Samuel 15:35-36 And hast thou not there with thee Zadok and Abiathar the priests? therefore it shall be, that what thing soever thou shalt hear out of the king's house, thou shalt tell it to Zadok and Abiathar the priests. 36 Behold, they have there with them their two sons, Ahimaaz Zadok's son, and Jonathan Abiathar's son; and by them ye shall send unto me every thing that ye can hear.
2 Samuel 17:15-22 Then said Hushai unto Zadok and to Abiathar the priests, Thus and thus did Ahithophel counsel Absalom and the elders of Israel; and thus and thus have I counselled. 16 Now therefore send quickly, and tell David, saying, Lodge not this night in the plains of the wilderness, but speedily pass over; lest the king be swallowed up, and all the people that are with him. 17 Now Jonathan and Ahimaaz stayed by Enrogel; for they might not be seen to come into the city: and a wench went and told them; and they went and told king David. 18 Nevertheless a lad saw them, and told Absalom: but they went both of them away quickly, and came to a man's house in Bahurim, which had a well in his court; whither they went down. ...
1 Kings 2:26 And unto Abiathar the priest said the king, Get thee to Anathoth, unto thine own fields; for thou art worthy of death: but I will not at this time put thee to death, because thou barest the ark of the Lord GOD before David my father, and because thou hast been afflicted in all wherein my father was afflicted.

Supports Adonijah's pretensions to the throne

1 Kings 1:7 And he conferred with Joab the son of Zeruiah, and with Abiathar the priest: and they following Adonijah helped him.

Thrust out of office by Solomon

1 Kings 2:26-27 And unto Abiathar the priest said the king, Get thee to Anathoth, unto thine own fields; for thou art worthy of death: but I will not at this time put thee to death, because thou barest the ark of the Lord GOD before David my father, and because thou hast been afflicted in all wherein my father was afflicted. 27 So Solomon thrust out Abiathar from being priest unto the LORD; that he might fulfil the word of the LORD, which he spake concerning the house of Eli in Shiloh.
1 Samuel 2:31-35 Behold, the days come, that I will cut off thine arm, and the arm of thy father's house, that there shall not be an old man in thine house. 32 And thou shalt see an enemy in my habitation, in all the wealth which God shall give Israel: and there shall not be an old man in thine house for ever. 33 And the man of thine, whom I shall not cut off from mine altar, shall be to consume thine eyes, and to grieve thine heart: and all the increase of thine house shall die in the flower of their age. 34 And this shall be a sign unto thee, that shall come upon thy two sons, on Hophni and Phinehas; in one day they shall die both of them. ...

2. ABIATHAR

See AHIMELECH