Maybe, but there’s apparently one place in the NT where it’s perfectly fine. Matthew 5:31
Your comment implies that Jesus is contradicting Himself, but I think the true meaning is based on how we are to understand the phrase “except for porneia”.
Historically, and in context, the church has understood this to mean, “except in the case of an unlawful sexual union”-— that is, if the first union were not a valid, God-made bond to begin with.
Matthew 5:31-32: “It was also said, ‘Whoever divorces his wife must give her a bill of divorce. But I say to you, whoever divorces his wife (unless the marriage is unlawful) causes her to commit adultery, and whoever marries a divorced woman commits adultery.”