And as for Ishmael, I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.(Genesis 17:20)

But my covenant will I establish with Isaac, which Sarah shall bear unto thee at this set time in the next year.(Genesis 17:21)

And he left off talking with him, and God went up from Abraham.(Genesis 17:22)

And Abraham took Ishmael his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham's house; and circumcised the flesh of their foreskin in the selfsame day, as God had said unto him.

And Abraham was ninety years old and nine, when he was circumcised in the flesh of his foreskin.(Genesis 17:24)

And Ishmael his son was thirteen years old, when he was circumcised in the flesh of his foreskin.(Genesis 17:25)

In the selfsame day was Abraham circumcised, and Ishmael his son.(Genesis 17:26)

Other publications related to "Genesis 17:23":

Genesis 22 (part 2)
A sermon on the lessons of Abraham's sacrifice of Isaac, emphasizing the importance of sacrificial giving and obedience, and trusting in God's provision and blessing.

God always keeps what he promises
Dr. Roberto Miranda discusses how Abrahams faith in Gods promises led to his blessings and how trusting in God can lead to fulfillment of promises.

Genesis 17:23 - Cross Reference

For in Christ Jesus neither circumcision availeth any thing, nor uncircumcision, but a new creature. (Galatians 6:15)

I made haste, and delayed not to keep thy commandments. (Psalm 119:60)

Cometh this blessedness then upon the circumcision only, or upon the uncircumcision also? for we say that faith was reckoned to Abraham for righteousness. (Romans 4:9)

For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision; but faith which worketh by love. (Galatians 5:6)

This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised. (Genesis 17:10)

At that time the LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time. (Joshua 5:2)

Him would Paul have to go forth with him; and took and circumcised him because of the Jews which were in those quarters: for they knew all that his father was a Greek. (Acts 16:3)

Boast not thyself of to morrow; for thou knowest not what a day may bring forth. (Proverbs 27:1)

In the selfsame day was Abraham circumcised, and Ishmael his son. (Genesis 17:26)

For I know him, that he will command his children and his household after him, and they shall keep the way of the LORD, to do justice and judgment; that the LORD may bring upon Abraham that which he hath spoken of him. (Genesis 18:19)

And unto Hamor and unto Shechem his son hearkened all that went out of the gate of his city; and every male was circumcised, all that went out of the gate of his city. (Genesis 34:24)

Is any man called being circumcised? let him not become uncircumcised. Is any called in uncircumcision? let him not be circumcised. (1 Corinthians 7:18)

Whatsoever thy hand findeth to do, do it with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, whither thou goest. (Ecclesiastes 9:10)

For circumcision verily profiteth, if thou keep the law: but if thou be a breaker of the law, thy circumcision is made uncircumcision. (Romans 2:25)