Even at this day, and for believers in Christ, after all the teaching and experience of eighteen Christian centuries, this is a high, almost an unattainable, standard to set up. Even to-day it is thought an advanced position that miracles as a security for truth are subordinate and inferior to the light of the truth itself as exhibited in the lives of faithful men. Yet that is precisely what the Deuteronomist teaches. He has no doubt about miracles. He regards them as being Divinely sent, even when they might be made use of to mislead; but he calls upon his people to disregard them if they seem to point towards unfaithfulness to God. Their supreme trust is to be that Yahweh cannot deny Himself. If he seem to do so by giving the sanction of miracle to teaching which denies Him, that is only to prove men, to know whether they love Yahweh their God with all their heart and with all their soul. The inner certainty of those who have had communion with Yahweh is to override everything else. "Whosoever loves God with a pure heart," says Calvin, "is armed with the invincible power of the Divine Spirit, that he should not be ensnared by falsehoods."[76] This has always been the confidence of religious reformers who have had real power. Luther, for example, took his stand upon the New Testament and his own personal experience; and by what he _knew_ of God he judged all that the most venerable tradition, and the authority of the Church, and the examples of saintly men claimed to set forth as binding upon him. "Here stand I: I can do no other: God help me." He felt that he had hold of the heart of the revelation of God as it was made in Christ, and he rejected, without scruple, whatever in itself or in its results contradicted or obscured that. Inspired and upheld by this consciousness, he faced a hostile world and a raging Church with equanimity. It is always so that abuses have been removed and innovations that are hurtful warded off in the Church of God. [76] _Commentary on Pentateuch_, vol. i., p. 448.