Abimelech (King of Gerar) is mentioned 23 times in scripture, across 1 book of the Old Testament. First named in scripture around 1897 BC.
A king of Gerar in the time of Isaac, probably the son of the preceeding (Gen. 26:1-22). Isaac sought refuge in his territory during a famine, and there he acted a part with reference to his wife Rebekah similar to that of his father Abraham with reference to Sarah. Abimelech rebuked him for the deception, which he accidentally discovered. Isaac settled for a while here, and prospered. Abimelech desired him, however, to leave his territory, which Isaac did. Abimelech afterwards visited him when he was encamped at Beer-sheba, and expressed a desire to renew the covenant which had been entered into between their fathers (Gen. 26:26-31).