Genesis 21:12 And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called. 10 I MC VC

Genesis 21:13 And also of the son of the bondwoman will I make a nation, because he is thy seed. 10 I MC VC

Hebrews 11:17 By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son, 7 I MC VC

Hebrews 11:18 Of whom it was said, That in Isaac shall thy seed be called: 7 I MC VC