Here is a summary of Owen’s 17 differences between the Old Covenant and New Covenant, taken from his Hebrews 8:6 commentary. Sometimes I have retained his wording, but other times I have formatted them differently. You can find an online version of the commentary at Study Light.
There is also a great collapsible outline made by Brandon Adams at http://www.1689federalism.com/owen/demo/owen.html.
Difference 1
- These two covenants differ in the circumstance of time as to their promulgation, declaration, and establishment. The first covenant was made at the time that God brought the children of Israel out of Egypt, and took its date from the third month after their coming up from thence, Ex 19:24. From the time of what is reported in the latter place, wherein the people give their actual consent unto the terms of it, it began its formal obligation as a covenant. The new covenant was declared and made known “in the latter days,” Heb. 1:1-2; “in the dispensation of the fullness of times,” Eph. 1:10. And it took date, as a covenant formally obliging the whole church, from the death, resurrection, ascension of Christ, and sending of the Holy Ghost.
Difference 2
- They differ in the circumstance of place as to their promulgation; which the Scripture also taketh notice of. The first was declared on mount Sinai; the manner whereof, and the station of the people in receiving the law Ex 19:18. The other was declared on mount Zion, and the law of it went forth from...