Matthew 19:7-9

Moffatt(i) 7 They said to him, "Then why did Moses lay it down that we were to divorce by giving a separation-notice?" 8 He said to them, "Moses permitted you to divorce your wives, on account of the hardness of your hearts, but it was not so from the beginning. 9 I tell you, whoever divorces his wife except for unchastity and marries another woman, commits adultery; and he who marries a divorced woman commits adultery."