“It hath been said, Whosoever shall put away his wife, let him give her a writing of divorcement: but I say unto you, That whosoever shall put away his wife, saving for the cause of fornication, causeth her to commit adultery: and whosoever shall marry her that is divorced committeth adultery. Again, ye have heard that it hath been said by them of old time, Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths: but I say unto you, 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 5:31-37 KJV,https://bible.com/bible/1/mat.5.31-37.KJV
“Then all Israel gathered themselves to David unto Hebron, saying, Behold, we are thy bone and thy flesh. And moreover in time past, even when Saul was king, thou wast he that leddest out and broughtest in Israel: and the LORD thy God said unto thee, Thou shalt feed my people Israel, and thou shalt be ruler over my people Israel. Therefore came all the elders of Israel to the king to Hebron; and David made a covenant with them in Hebron before the LORD; and they anointed David king over Israel, according to the word of the LORD by Samuel. And David and all Israel went to Jerusalem, which is Jebus; where the Jebusites were, the inhabitants of the land. And the inhabitants of Jebus said to David, Thou shalt not come hither. Nevertheless David took the castle of Zion, which is the city of David. And David said, Whosoever smiteth the Jebusites first shall be chief and captain. So Joab the son of Zeruiah went first up, and was chief. And David dwelt in the castle; therefore they called it ...