What does Isaiah 25:5 mean?
When the circumstances of life seem hopeless, the Lord steps in as a comfort and protection for His people. The most brutal invaders of Isaiah's era were the Assyrians. But ruthless men and nations have existed, and still do exist, in every age on this side of the Lord's judgment of the world. These cruel nations always threaten in one way or another. Isaiah praises the Lord because He intervenes in seemingly hopeless situations. God provides relief, protection, and eventually salvation to His people when it appears there is no hope (Isaiah 25:2–4).That rescue is depicted as the Lord as subduing the "noise," or uproar, of the foreigners. As in other verses (Isaiah 25:2), those opposed to God are broadly called "foreigners," in contrast to the supposedly God-honoring Israelites. Isaiah pictures the deafening battle cries of the enemy warriors as they bear down on their targets. The Lord stops their cries in their throats by the exercise of His power. God ends their battle songs, which was meant to intimidate their victims. He is the hope of the hopeless in the face of the ruthless.
The verse ends with an example comparing the Lord to a cloud that comes between those melting under the sun and the blistering heat.