Proverbs 5:15 (ESV)
Drink water from your own cistern,
flowing water from your own well.
Like all poetry writers, Solomon uses a variety of ways to convey the truth he wants us to grasp. In this chapter he is warning us (primarily men) about falling into the trap to allow a women of adultery to seduce us into sin. To PREVENT that from happening he tells the reader to pay attention to his words and heed the cry of his voice (Proverbs 5:7-14). His first solution to prevent adultery is to heed the word of God. That might sound too simple but it is his solution and we ought to listen to him if we wish to prevent that same fall many men have experienced. His second solution is found in the above proverb, of which he uses poetic language to make his point. Not only are we to heed God's Word (it is the Sword of the Spirit), we are also to "drink water from our own we,,.” Since he is talking about sexual adultery we can be assured that "water" in the above verse is also referring to sexual acts. Solomon's second suggestion when you feel tempted to sin in adultery is to remember who you are married to and get those impulses, needs, desires or inclinations feed from your spouse. He will talk to the reader in the next couple of verses about allowing your spouse to satisfy your needs with their body. The one sure way to combat sexual desire is to fill that natural desire, in the way God intended it. We ought never get bored with our own "water." God sealed the marriage bond and He makes the marriage bed a place of satisfaction. When we attempt to fulfill our desires some other way, we not only sin, but we fail to see how God can meet that need through our spouse. Solomon is telling us to follow God's Word in faith and allow God to meet the need in the way He designed it to be met.
There is much said in God's Word about adultery and about how to respond to temptation. In this chapter we see a great picture of what God is trying to tell us: If men want to avoid temptation from a women then be satisfied with the one you have. We are to "drink" from the well God gave us. Yielding to temptation from another women can be avoided by taking a "drink" from your own wife. This "water" is "fresh." It is something we need to enjoy and should enjoy. The temptation sounds fresh. But in reality God has provided us with the spouse, or love, we are to have. When we look for someething else we are, in reality, refusing to believe what God has provided His best for us. Cheating on a spouse is, in essence, failure to believe in God's best for you. Looking at another women/man and lusting after them is refusing to believe in God's providence. God has given you a "fresh" well to drink from. Don't go drinking out of a puddle.