EJ&T: Commandments about swearing

Swear.

Thou shalt swear, The LORD liveth, in truth, in judgment, and in righteousness.. Jeremiah 4:2

Swear to God.

He that sweareth in the earth shall swear by the God of truth. Isaiah 65:16

Swear by God's name.

Maimonides #213: To swear in God's Name to confirm the truth when deemed necessary by court

Thou shalt ... swear by his name. Deuteronomy 6:13, 10:20

Swear by my name. Jeremiah 12:16

Don't swear falsely in God's name.

Maimonides #209: Not to swear falsely in God's Name

Ye shall not swear by my name falsely. Leviticus 19:12

Don't swear by the name of any other god.

Neither make mention of the name of their gods, nor cause to swear by them. Joshua 23:7

Don't swear at all.

Swear not at all; neither by heaven; for it is God's throne: Nor by the earth; for it is his footstool: neither by Jerusalem; for it is the city of the great King. Neither shalt thou swear by thy head, because thou canst not make one hair white or black. But let your communication be, Yea, yea; Nay, nay: for whatsoever is more than these cometh of evil. Matthew 5:34-37

But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation. James 5:12

(For more on this, see Is it OK to swear?)