Matthew 5:36

Do not take an oath by your head, because you are not able to make one hair white or black.

Matthew 6:27

And which of you by worrying can add even one hour to his life?

Matthew 23:16-21

"Woe to you, blind guides, who say, 'Whoever swears by the temple is bound by nothing. But whoever swears by the gold of the temple is bound by the oath.'

Luke 12:25

And which of you by worrying can add an hour to his life?

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 to you, blind guides, who say, 'Whoever swears by the temple is bound by nothing. But whoever swears by the gold of the temple is bound by the oath.'

Because

Matthew 6:27
And which of you by worrying can add even one hour to his life?
Luke 12:25
And which of you by worrying can add an hour to his life?

General references

Luke 12:25
And which of you by worrying can add an hour to his life?

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