וַיַּנְחֵ֕ם אֶת־פְּנֵ֖י מֶ֣לֶךְ מוֹאָ֑ב וַיֵּשְׁב֣וּ עִמּ֔וֹ כָּל־יְמֵ֥י הֱיוֹת־דָּוִ֖ד בַּמְּצוּדָֽה׃ (ס)
And he brought them before the king of Moab; and they dwelt with him all the while that David was in the stronghold.
Read Kabbalistic (mystical) interpretations of I Samuel 22:4: Zohar and classical Jewish mystical sources, free online.