“Jesus came into the district of Judea and across the Jordan. Again crowds gathered around him and, as was his custom, he again taught them. The Pharisees approached him and asked, "Is it lawful for a husband to divorce his wife?" They were testing him. He said to them in reply, "What did Moses command you?" They replied, "Moses permitted a husband to write a bill of divorce and dismiss her." But Jesus told them, "Because of the hardness of your hearts he wrote you this commandment. But from the beginning of creation, God made them male and female. For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh. So they are no longer two but one flesh. Therefore what God has joined together, no human being must separate." In the house the disciples again questioned Jesus about this. He said to them, "Whoever divorces his wife and marries another commits adultery against her; and if she divorces her husband and marries another, she commits adultery." -Mark 10:1-12
The enemy tempts us to live by the world’s standards, to live as others live, and to regard sin as we do a passing breeze. But, I learned the hardest of ways: we are commanded to live not by the world’s law but by God's perfect and eternal law.
At first, it may seem hard, but when we surrender ourselves to Christ, life changes. Where once we lived in sin without regard, now if we fall back into sin, it feels like we have fallen into a pit of stinking mud. We hurriedly ask the Lord, through His forgiveness, to pull us out and cleanse us once again.
But first, we must surrender ourselves. Once we give our all to Christ, living by any other law becomes repugnant to us.