He was circumcised later, and his circumcision was a sign to show that because of his faith God had accepted him as righteous before he had been circumcised. And so Abraham is the spiritual father of all who believe in God and are accepted as righteous by him, even though they are not circumcised.

He is also the father of those who are circumcised, that is, of those who, in addition to being circumcised, also live the same life of faith that our father Abraham lived before he was circumcised.

Why did you deceive me and slip away without telling me? If you had told me, I would have sent you on your way with rejoicing and singing to the music of tambourines and harps.

and dance to the music of harps and flutes.

At your feasts you have harps and tambourines and flutes---and wine. But you don't understand what the LORD is doing,

You like to compose songs, as David did, and play them on harps.