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, which 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
Which of you by taking thought can add one cubit unto his stature?
Luke 12:25
And which of you with taking thought can add to his stature one cubit?

General references

Luke 12:25
And which of you with taking thought can add to his stature one cubit?

King James Version Public Domain