Matthew 5:32-34 New King James Version (NKJV)
32 But I say to you that whoever divorces his wife for any reason except [a]sexual immorality causes her to commit adultery; and whoever marries a woman who is divorced commits adultery.
Jesus Forbids Oaths
33 “Again you have heard that it was said to those of [b]old, ‘You shall not swear falsely, but shall perform your oaths to the Lord.’ 34 But I say to you, do not swear at all: neither by heaven, for it is God’s throne;
Matthew 5:32-34 New International Version (NIV)
32 But I tell you that anyone who divorces his wife, except for sexual immorality, makes her the victim of adultery, and anyone who marries a divorced woman commits adultery.
33 “Again, you have heard that it was said to the people long ago, ‘Do not break your oath, but fulfill to the Lord the vows you have made.’ 34 But I tell you, do not swear an oath at all: either by heaven, for it is God’s throne;