Psalms 35:3

“Draw out also the spear, etc.] An offensive weapon; expressive of the vengeance which God sometimes takes of the enemies of his people, when he bends his bow, shoots his arrows, whets his glittering sword, and his hand takes hold of judgment; and stop [the way] against them that persecute me; that they might not overtake him; God can hinder, and he sometimes does hinder persecutors from overtaking his people in their straits; and as he hedges up their way with thorns, that they cannot proceed as they have begun, so he hedges up the way of their enemies; interposes himself and his power, and is a wall of fire about them; a wall for the defence and security of his saints, and a wall of fire…”

“fight against--literally, "devour my devourers." stop the way against--literally, "shut up" (the way), to meet or oppose, &c. I . . . thy salvation--who saves thee.”

“Draw out also the spear - The word here rendered “draw out” means properly to pour out; to empty; and it is applied to the act of emptying sacks, Genesis 42:35; to emptying bottles, Jeremiah 48:12; to drawing a sword from a sheath, Exodus 15:9; Leviticus 26:33; Ezekiel 5:12. It is applied to a “spear” either as drawing it out of the place where it was kept, or as stretching it out for the purposes of attack. The former probably is the meaning, and the idea is, that David prayed God to “arm himself” - as a warrior does - in order to defend him. The spear was a common weapon in ancient warfare. It was sometimes so short that it could be brandished as a sword in the hand, or hurled at an enemy,…”

“Say - By thy spirit assuring me of it: and by thy providence effecting it. Psalms 35:6”

“stop: Psa 27:2, Psa 76:10; Sa1 23:26, Sa1 23:27; Job 1:10; Isa 8:9, Isa 8:10, Isa 10:12; Act 4:28 say: Psa 51:12, Psa 62:7, Psa 91:16; Gen 49:18; Isa 12:2; Luk 2:30 Psalms 35:4”