As I begin the study of Genesis 17, I find it so strange.
1. Exceedingly old people being told they’ll have babies: That's rather weird.
2. God institutes a covenant through circumcision: That's even weirder.
3. Abram gets his name changed to Abraham, and he is instructed to start calling his wife by a different name as well. That's just completely bonkers.
Could you imagine if your spouse did that?!