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, you blind guides! You say, 'When you swear by the temple, it is nothing.' Then you say, 'When you swear by the gold of the temple, you are obligated.'

Because

Matthew 6:27
Can you live longer by worrying about it?
Luke 12:25
Which of you by being anxious can add a cubit to your life?

General references

Luke 12:25
Which of you by being anxious can add a cubit to your life?