This phrase is used here to mark the beginning of a new part of the story. If your language has a way for doing this, you could consider using it here. (See: [[rc://en/ta/man/jit/writing-newevent]])
It is implied that God tests Abraham to learn if Abraham will be faithful to him. The full meaning of this statement can be made explicit. Alternate translation: God tested Abraham's faithfulness" (See: [[rc://en/ta/man/jit/figs-explicit]])