Neh 1:9

1:9 I will gather them. The Mosaic covenant promised restoration of a remnant after exile (Deut. 30:1–5) on the basis of the covenant made with Abraham (Deut. 4:25–31).

make my name dwell there. The name of God symbolizes God Himself, as He reveals Himself to His people. A place for His name to dwell is a place for Him to be with the people and to receive their worship (Deut. 12:5 note).