מַלְוֵ֣ה יְ֭הוָה ח֣וֹנֵֽן דָּ֑ל וּ֝גְמֻל֗וֹ יְשַׁלֶּם־לֽוֹ׃
He that is gracious unto the poor lendeth unto the LORD; And his good deed will He repay unto him.
Read kabbalistic (mystical) interpretation of Proverbs 19:17: and classical mystical sources.