וְהַֽעֲמַדְתִּ֛יהוּ בְּבֵיתִ֥י וּבְמַלְכוּתִ֖י עַד־הָעוֹלָ֑ם וְכִסְא֕וֹ יִהְיֶ֥ה נָכ֖וֹן עַד־עוֹלָֽם׃
aber ich werde ihn für immer in meinem Haus und in meinem Reich niederlassen; und sein Thron wird für immer errichtet werden.'
Rashi
from afar that You have established my kingdom until future times, for You said, “And I shall station him in My house and in My kingdom forever.”
Rashi
and the house of David Your servant shall be established before You that You spoke, (v. 14): “... and his throne shall be established forever.”