As we have heard. Thus linking on Psalms 44:1.
the LORD of hosts. Compare Psalms 46:7; Psalms 46:11.
Selah. Connecting the demand of Psalms 46:10, to "be still" and exalt Jehovah, with the "rest" in the thought of His lovingkindness.
Related Commentaries of Psalms 48:8
Psalms 48:8
8 As we have heard, so have we seen in the city of the LORD of hosts, in the city of our God: God will establish it for ever. Selah.