In annanā wa-iyyākum ... sawāʾ, anna adds emphasis and sawāʾ supplies the idea of equal standing. In ghadartum introduces a condition whose response appears in fa-innā ... burāʾ.
Laysa minnā negates membership. In lam tarjiʿ, lam gives a negated past sense with a jussive imperfect. Lā raʾfah wa-lā ibqāʾ negates two nouns in parallel, sharpening the harsh martial picture.
ConstructionFunctionIn ... fa-innāCondition and responseLam tarjiʿNegation of a past eventLā ... wa-lāEmphatic parallel denial