V 6-8 "And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so. And God called the firmament Heaven. And the evening and the morning were the second day.”
Water has no shape and no strength. It conforms to the shape of the vessel in which it is contained. Without those constraining walls, water would be become an shapeless puddle. Who wants a courtship that has no shape or strength to it? Serious commitments are necessary to create and sustain a serious relationship.
A lifetime commitment between two people will not last if it has no ability to stand in its own strength. The world encourages and tolerates many kinds of sinful conduct as being acceptable for two who are "in love". Most of these standards very soon lead young people into the sin of immorality. Never allow your courtship to be formed by the world's thoughts for that is like trying to build a courtship on water. "Be not conformed to this world." (Rom. 12:22And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God. (Romans 12:2)).