Is this using faith to overthrow law? Far from it. This confirms the Law.

So your experience has confirmed the testimony that I bore to Christ,

for to all the promises of God he supplies the "Yes" that confirms them. That is why we utter the "Amen" through him, when we give glory to God.

when on that Day he comes to be honored in his people, and wondered at in all who believe in him??ecause our testimony has been confirmed in you.

And they went out and preached everywhere, while the Lord worked with them and confirmed their message by the signs that attended it.