Malachi 1:5

And your eyes shall see, and ye shall say, The LORD will be magnified from the border of Israel.

The setting is loss of vital faith joined to selfish practice that blinds the heart to divine holiness and greatness. Worship comes to be treated as unimportant, and blind, lame and sick animals are brought for offering because they cost less. The visible human governor is valued above the unseen God. The verse belongs to a message that condemns the degeneracy of the priesthood and the shortcomings of God's people.

Your eyes shall see means that Israel, that is the faithful, will look upon Edom's desolation as the outcome of its rebellion. In seeing it they will acknowledge that the Lord is magnified beyond Israel's borders, that his name is great outside their own land. God will be honored even through the downfall of those who refuse to honor him faithfully.

Taken together with the verses that follow it through verse 11, the verse shows that the Lord's greatness and claims extend beyond Israel's borders. Failing to honor those claims while knowing them brings a curse, as illustrated by withholding tithes and offerings. The rebuke is pointed forward to the closing days of the Christian dispensation, when the Lord returns and the judgments of the great day separate the righteous from the wicked.