But now He has obtained a more excellent ministry, inasmuch as He is also Mediator of a better covenant, which was established on better promises. – Hebrews 8:6
This is the meaning of the word νενομοθέτηται: “established,” say we; but it is, “reduced into a fixed state of a law or ordinance.” All the obedience required in it, all the worship appointed by it, all the privileges exhibited in it, and the grace administered with them, are all given for a statute, law, and ordinance unto the church. That which before lay hid in promises, in many things obscure, the principal mysteries of it being a secret hid in God himself, was now brought to light; and that covenant which had invisibly, in the way of a promise, put forth its efficacy under types and shadows, was now solemnly sealed, ratified, and confirmed, in the death and resurrection of Christ. It had before the confirmation of a promise, which is an oath; it had now the confirmation of a covenant, which is blood. That which before had no visible, outward worship, proper and peculiar unto it, is now made the only rule and instrument of worship unto the whole church, nothing being to be admitted therein but what belongs unto it, and is appointed by it. This the apostle intends by νενομοθέτηται, the “legal establishment” of the new covenant, with all the ordinances of its worship. Hereon the other covenant was disannulled and removed; and not only the covenant itself, but all that system of sacred worship whereby it was administered. This was not done by the making of the covenant at first; yea, all this was superinduced into the covenant as given out in a promise, and was consistent therewith. When the new covenant was given out only in the way of a promise, it did not introduce a worship and privileges expressive of it. Wherefore it was consistent with a form of worship, rites and ceremonies, and those composed into a yoke of bondage which belonged not unto it. And as these, being added after its giving, did not overthrow its nature as a promise, so they were inconsistent with it when it was completed as a covenant; for then all the worship of the church was to proceed from it, and to be conformed unto it.
 John Owen, An Exposition of the Epistle to the Hebrews, Volume 6, ed. W. H. Goold, vol. 23, Works of John Owen (Edinburgh: Johnstone and Hunter, 1854), 64–65.