John Owen on the Divinely Appointed Means of Grace

From John Owen on The Saints’ Perseverance, Vol. 11:611

But yet I say, in an inquiry after and dijudication of truth, whatever I have been or may be straitened between different persuasions, I have [chosen], and shall rather choose, in the practice of holiness, in prayer, faith, and waiting upon God, to search the Scripture, to attend wholly to that rule, having plentiful promises for guidance and direction, than to weigh in any rational consideration of my own what is conducing to holiness, what not, especially in many truths which have their usefulness in this service (as is the case of most gospel ordinances and institutions of worship), not from the connection of things, but from the mere will of the Appointer. Of those doctrines, I confess, which, following on to know the Lord, we know from his word to be from him, and which in doing the will of Christ are revealed to us to be his will,  a peculiar valuation is to be set on the head of them which appear to be peculiarly and eminently serviceable to the promotion and furthering of our obedience; as also, that all opinions whatever that are in the least seducers from the power, truth, and spirituality of obedience, are not of God, and are eo nomine to be rejected: yet, having a more sure rule to attend unto, I dare not make my apprehensions concerning the tendency of doctrines any rule, if God hath not so spoken of them, for the judging of their truth or falsehood, if my thoughts are not shut up and determined by the power of the word.