^2:26 And he who overcomes and he who keeps My deeds until the end, to him I will give authority over the nations;

And he who overcomes and

The promised blessing with an added provision (see format).

he who keeps My deeds UNTIL THE END,

This phrase is found in verse 8 of the great Messianic Psalm 2. The people at Thyatira who have staying power until the end will have authority over the nations plus the rest of the promise in the next verse.