Reference for I Chronicles 17:14

וְהַֽעֲמַדְתִּ֛יהוּ בְּבֵיתִ֥י וּבְמַלְכוּתִ֖י עַד־הָעוֹלָ֑ם וְכִסְא֕וֹ יִהְיֶ֥ה נָכ֖וֹן עַד־עוֹלָֽם׃

but I will settle him in My house and in My kingdom for ever; and his throne shall be established for ever.’