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
A curse is on you, blind guides, who say, Whoever takes an oath by the Temple, it is nothing; but whoever takes an oath by the gold of the Temple, he is responsible.

Because

Matthew 6:27
And which of you by taking thought is able to make himself a cubit taller?
Luke 12:25
And which of you by taking thought is able to make himself any taller?

General references

Luke 12:25
And which of you by taking thought is able to make himself any taller?

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain