ARM
The member of the body capable of lifting loads and defending the person: it is used symbolically of the power and strength of God in favor of His own (Ex. 15:16; Ps. 77:15; Is. 51:9; 53: 1).
The arm of Jehovah is often mentioned in the OT.
He redeemed (Ex. 6:6 etc.);
gathers His own (Is. 40:11);
and rules for Him (Is. 40:10) in the kingdom.
It is a holy arm (Is. 52:10; Ps. 98:1),
and it is glorious (Isa. 63:12).
The arm of Jehovah is revealed to souls where there is repentance and faith in the announcement that God sends (Is. 53:1; Rom. 10:16).
They will trust in him even in the islands of the Gentiles, that is, sinners in all creation (Is. 51:5).