John Gill Commentary 2 Chronicles 20:9

"If evil come upon us, the sword, judgment, or pestilence, or famine, we will stand before this house, and before thee, (for thy name is in this house,) and cry unto thee in our affliction, and thou wilt hear and save." — 2 Chronicles 20:9 (ASV)

If when evil comes upon us
Any calamity, as the sword, judgment, or pestilence, or famine ,
God's four sore judgments, if by "judgment" is meant wild beasts:

we stand before this house ;
in the court before the holy place, and holy of holies:

and in your presence, for your name is in this house ;
called upon in it, and it was called by his name, and in which he dwelt:

and cry unto you in our affliction ;
as Solomon prayed at the dedication of it:

then you will hear and help ;
as the Lord promised, see (1 Kings 8:33 1 Kings 8:37) (9:3) .