As cold waters to a thirsty soul, so is good news from a far country. –Proverbs 25:25.

This is a text for summertime rather than for a winter’s evening. It is only on one of our hottest summer days that we could fully appreciate the illustration here employed; we need to be parched with thirst to be able to feel the value of cold waters to quench our thirst. At the same time, I think that we can, without any very great stretch of imagination, put ourselves into the position of some to whom cold waters have been almost like life from the dead. Look at Hagar, in the wilderness with her child, whom she has cast under one of the shrubs, that she may not see him die. The water in the bottle is spent, and she longs for a cooling draught that might save the young lad’s life. Then the Lord opened her eyes, so that she saw a well of water in the desert, and as she filled her bottle from it she understood what cold waters are to a thirsty soul. Think also of the whole nation of Israel in the wilderness crying out in agony because there was no water for them to drink. Then they began to murmur against the Lord, and against Moses; but how joyful they were when the smitten rock poured forth its cooling stream, and they rushed to it, and drank to the full. If you want another personal example of the blessing of cold water to a thirsty soul, think of Samson. Heaps upon heaps, with the jawbone of an ass he has slain a thousand men; but the dust of the conflict, and the heat, and the exhaustion had caused such an intense thirst to come upon him that he is ready to die. Then he lifts up his voice to the Lord; and the same God, who had made the jawbone to be so mighty a weapon against the Philistines, opens for him a spring of water in that very jawbone, and he drinks, and is refreshed, and magnifies the name of the Lord. So, you see, there are occasions when cold waters are inexpressibly precious to thirsty souls; and Solomon, who seems to have known something of their value, says that good news from a far country is equally pleasant, and refreshing, and reviving.

Good news from God for sinners is like cold waters to a thirsty soul~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2866.cfm