Isaiah 52:10

God would display His power (roll up His sleeves) before all the nations by redeeming His people (cf. Isaiah 18:3). It was customary for warriors to bare their right arms up to their shoulders so they could fight without the encumbrance of a sleeve. [Note: Delitzsch, 2:300.] God’s power is holy in that it is perfect and transcendent, and it is also for a holy purpose, namely, the salvation of His people (cf. Mark 1:24; Luke 4:34). His salvation would become visible to the whole world.