The proud and lofty people would eventually try to hide from God"s judgment of them when He exalts Himself in the day of His reckoning (see Isaiah 2:12). Having boasted in earthly resources ( Isaiah 2:6-8), they now have only the earth to turn to (cf. Isaiah 1:24). Contrast the nations that the Lord will accept in the future ( Isaiah 2:4). [source][source][source]
"In preaching as he does here, Isaiah is going contrary to modern psychological theories which assert that it is unwise and even wrong to use fear as a motif in preaching and teaching. How different God"s appraisal of preaching!... The only way to run from God is to run to Him." [1][source]