Proverbs 5:15 "Drink waters out of thine own cistern, and running waters out of thine own well."
"Cistern" and "running waters from one’s own well" is figurative for a man’s wife. The Pulpit commentary says this about this figurative speech:
It may be remarked that the allusion to the wife, under the figures employed, enhances her value. It indicates the high estimation in which she is to be held, since the "cistern" or "well" was one of the most valuable possessions and adjuncts of an Eastern house. The teaching of the passage, in its bearing on the subject of marriage, coincides with that which is subsequently put forward by St. Paul, in 1 Corinthians 7:9.
Pasted from <http://biblehub.com/proverbs/5-15.htm>
In the context of this passage, Solomon admonishes his son, to be content with his wife, to joy in her, to love her, and to cherish her (Prov. 5:15-19). He warns of the danger of sexual sin outside of the God-given bounds of marriage (Prov. 5:3-14, 20-23). Marriage is like having a fire in the fireplace where it is beneficial in keeping the house warm. Sexual sin is like taking the fire out of the fire place and setting it on the floor, and it burning the house down though the intent was to keep the house warm. Sexual sin self-destructs the ones imbibing in its short-lived pleasures.
The same truth holds true in a believer’s relationship with Christ as he or she is a part of His bride through being a part of a local church (Acts 2:41). God is our God and in Him we ought to find our delight. Yet how often do we listen to the "foolish woman" who says, "Stolen waters are sweet"? When we sin, we poison the waters God designed for His glory and exploit it for our own selfish desires. This verse says we are to drink waters out of our own cistern (well, fountain). Any time we are unfaithful to God, it is idolatry, and is adultery against Him. Are you finding your delight in Him, or are you discontent with the Lord and what He has given you? Be faithful to Him.
Isaiah 12:1-3 refers to the Millennial reign of Christ and Song of Solomon 2:16a pictures Christ and His bride. These verses ought to be reality and personal testimony for every believer.
"And in that day thou shalt say, O LORD, I will praise thee: though thou wast angry with me, thine anger is turned away, and thou comfortedst me. 2 Behold, God is my salvation; I will trust, and not be afraid: for the LORD JEHOVAH is my strength and my song; he also is become my salvation. 3 Therefore with joy shall ye draw water out of the wells of salvation." Isaiah 12:1-3
“My beloved is mine, and I am his…” Song of Solomon 2:16a
Be satisfied with the fountain of life, Jesus Christ, don’t go to the world’s stolen waters for your satisfaction. It’s guests are in hell (Prov. 9:13-18).