ט֣וֹב יְהוָ֔ה לְמָע֖וֹז בְּי֣וֹם צָרָ֑ה וְיֹדֵ֖עַ חֹ֥סֵי בֽוֹ׃
The LORD is good, A stronghold in the day of trouble; And He knoweth them that take refuge in Him.
Read kabbalistic (mystical) interpretation of Nahum 1:7: and classical mystical sources.