Genesis 15:8

Treasury of Scripture Knowledge

And he said, Lord GOD, whereby shall I know that I shall inherit it?

And Abraham said unto his eldest servant of his house, that ruled over all that he had, Put, I pray thee, thy hand under my thigh:

And he said unto him, If now I have found grace in thy sight, then shew me a sign that thou talkest with me.

If they say thus unto us, Tarry until we come to you; then we will stand still in our place, and will not go up unto them.

And Hezekiah said unto Isaiah, What shall be the sign that the LORD will heal me, and that I shall go up into the house of the LORD the third day?

Shew me a token for good; that they which hate me may see it, and be ashamed: because thou, LORD, hast holpen me, and comforted me.

Ask thee a sign of the LORD thy God; ask it either in the depth, or in the height above.

And Zacharias said unto the angel, Whereby shall I know this? for I am an old man, and my wife well stricken in years.