Luke 1:18

And Zachariah said to the angel, By what shall I know this? for I am an old man, and my wife advanced in years.

Luke 1:34

And Mary said to the angel, How shall this be, since I know not a man?

Luke 1:7

And they had no son, because Elizabeth was barren, and both were advanced in years.

Romans 4:19

And being not weak in faith, he did not regard himself as dead, being now about a hundred years old, nor Sarah's incapacity for child-bearing,

Treasury of Scripture Knowledge

Summary

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

Whereby

Bible References

Whereby

Luke 1:34
And Mary said to the angel, How shall this be, since I know not a man?

For

Luke 1:7
And they had no son, because Elizabeth was barren, and both were advanced in years.
Romans 4:19
And being not weak in faith, he did not regard himself as dead, being now about a hundred years old, nor Sarah's incapacity for child-bearing,