Strong G3660 ὄμνυμι omnuō · to swear

Acts

1. Acts 2:30
   Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;
2. Acts 7:17
   But when the time of the promise drew nigh, which God had sworn to Abraham, the people grew and multiplied in Egypt,