"A generous person will be prosperous, and one who gives others plenty of water will himself be given plenty." (NASB 2020)
Sometimes the meaning of a quotation can be open to interpretation. In this case, however, its message is remarkably consistent with biblical truth. Although the words are not found in Scripture, the principle is: we lose nothing by sharing what God has graciously given us.
"A candle loses nothing by lighting another candle." — Anonymous