For John was saying to Herod, "It is not lawful for you to have your brother’s wife.
Other versions
King James Version
For John had said unto Herod, It is not lawful for thee to have thy brother's wife.English Standard Version
For John had been saying to Herod, "It is not lawful for you to have your brother's wife."New International Version
For John had been saying to Herod, "It is not lawful for you to have your brother's wife."