He arose, and smote the Philistines until his hand was weary,
&c.] He rose up when the Israelites fled, and stood his ground alone, and fought with the Philistines, and smote them with his sword, until his hand was weary with smiting:
and his hand clave unto the sword;
which was contracted by holding it so long, and grasping it so hard, that it could not easily be got out of it; or through the quantity of blood which ran upon his hand, as it was shed, so Josephus F20; and which being congealed, and dried, caused his hand to stick to the hilt of his sword, so that they were, as it were, glued together by it; or the sense may be only, that though weary, he did not drop his sword, but held it fast till he had destroyed the enemy:
and the Lord wrought a great victory that day;
for to him it must be ascribed, and not to the strength and valour of the man:
and the people returned after him only to spoil;
they that fled, when they saw what a victory was obtained by him, returned and came after him; not to help him in smiting, but to spoil those that were slain, and strip them of what they had.