TN Gen49:24 :מן תחות אדרע גבורתיה מתפרנסין כל שבטיא דישראל‏ : all the tribes of Israel are supported by his mighty arm
See the entire entry for prns vb. to supply, to support, to provide

TN Gen49:24 :ואשרי בתקיפה רוחצניה‏ : he placed his reliance on a strong thing
See the entire entry for ruḥṣān, ruḥṣānā n.m. security, reliance