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
Woe unto you, ye blind guides, that say, Whosoever shall swear by the temple, it is nothing; but whosoever shall swear by the gold of the temple, he is a debtor.

Because

Matthew 6:27
And which of you by being anxious can add one cubit unto the measure of his life?
Luke 12:25
And which of you by being anxious can add a cubit unto the measure of his life?

General references

Luke 12:25
And which of you by being anxious can add a cubit unto the measure of his life?

American Standard Version Public Domain