Matthew 5:31
"And it was said, 'Whoever divorces his wife must give her a certificate of divorce.'
Jeremiah 3:1
A {saying}: 'Look, [if] a man divorces his wife, and she goes from him {and she becomes another man's wife}, will he return to her again?' Will not that land be greatly defiled? And you have prostituted [yourself] [with] many lovers, [would] you now return to me?" {declares} Yahweh.
Matthew 19:7
They said to him, "Why then did Moses command [us] to give a document--a certificate of divorce--and to divorce her?"
Deuteronomy 24:1-4
"When a man takes a wife and he marries her {and then} {she does not please him}, because he found {something objectionable} and writes her a letter of divorce and puts [it] in her hand and sends her [away] from his house,
Matthew 19:3
And Pharisees came up to him [in order to] test him, and asked if it was permitted for a man to divorce his wife for any cause.
Mark 10:2-9
And they asked him if it was permitted for a man to divorce [his] wife, [in order to] test him.