Oecumenius : "And this we will do." Which? To be carried to perfection. "if God permits." The phrase "if God permits" is not to indicate that God does not always permit (for God always permits the good and perfect), but as is customary for us to say, If God wills, we will do this. At the same time, it also teaches us from this that everything depends on that will, and we should not rely confidently or arrogantly on our own judgment and power, even in matters generally acknowledged. This is explicitly encouraged by the apostle James. — The Pseudo-Oecumenian Catena on Hebrews