The example of the patriarchs:
Related Commentaries of Hebrews 11:17
Hebrews 11:17-22
17 By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son,
18 Of whom it was said, That in Isaac shall thy seed be called:
19 Accounting that God was able to raise him up, even from the dead; from whence also he received him in a figure.
20 By faith Isaac blessed Jacob and Esau concerning things to come.
21 By faith Jacob, when he was a dying, blessed both the sons of Joseph; and worshipped, leaning upon the top of his staff.
22 By faith Joseph, when he died, made mention of the departing of the children of Israel; and gave commandment concerning his bones.