John Gill Commentary Psalms 44:6

"For I will not trust in my bow, Neither shall my sword save me." — Psalms 44:6 (ASV)

For I will not trust in my bow
In any carnal weapon, in any creature help and assistance, or in an arm of flesh, but in the word of the Lord, and in his name; see (Psalms 20:7) ;

neither shall my sword save me ;
that is, I will not ascribe salvation to it; the church's weapons are not carnal, but spiritual; not the sword of the civil magistrate, but the sword of the Spirit, which is the word of God; Christ's kingdom, being not of this world, is not supported and defended by worldly means, or carnal weapons.