Treasury of Scripture Knowledge

Summary

Neither shalt thou swear by thy head, because thou canst not make one hair white or black.

General references

Bible References

Shalt

Matthew 23:16
wo unto you, ye blind guides, who say, if any man swear by the temple he is under no obligation: but if he swear by the gold of the temple, he is bound by his oath.

Because

Matthew 6:27
who by all his sollicitude can add one moment to his age?
Luke 12:25
but which of you, with all his disquietude, can add one moment to the period of his life?

General references

Luke 12:25
but which of you, with all his disquietude, can add one moment to the period of his life?