Reference for Psalms 136:4

לְעֹ֘שֵׂ֤ה נִפְלָא֣וֹת גְּדֹל֣וֹת לְבַדּ֑וֹ כִּ֖י לְעוֹלָ֣ם חַסְדּֽוֹ׃

To Him who alone doeth great wonders, For His mercy endureth for ever.

Jastrow