ידעת [יָדַ֗עְתִּי] כִּֽי־יַעֲשֶׂ֣ה יְ֭הוָה דִּ֣ין עָנִ֑י מִ֝שְׁפַּ֗ט אֶבְיֹנִֽים׃
I know that the LORD will maintain the cause of the poor, And the right of the needy.
Read kabbalistic (mystical) interpretation of Psalms 140:13: and classical mystical sources.