Hebrews 8:7

For if that first covenant had been faultless, a place would not have been sought for the second.

Hebrews 7:11

Then indeed if perfection was through the Levitical priesthood, for unto it the people have been tithed, what need is there still that another priest shall rise after the order of Melchizedek, and not be called after the order of Aaron?

Hebrews 7:18

For there is a disannulling of the preceding commandment, on account of its weakness and inadequacy

Galatians 3:21

Then was the law against the promises of God? it could not be so. For if the law was given being able to create life, truly justification would have been by law:

Hebrews 8:6

but now he has obtained a more excellent ministry, insomuch that he is also the mediator of a better covenant, which has been founded on better promises.

Treasury of Scripture Knowledge

Summary

For if that first covenant had been faultless, then should no place have been sought for the second.

Bible References

Had

Hebrews 8:6
but now he has obtained a more excellent ministry, insomuch that he is also the mediator of a better covenant, which has been founded on better promises.
Hebrews 7:11
Then indeed if perfection was through the Levitical priesthood, for unto it the people have been tithed, what need is there still that another priest shall rise after the order of Melchizedek, and not be called after the order of Aaron?
Galatians 3:21
Then was the law against the promises of God? it could not be so. For if the law was given being able to create life, truly justification would have been by law: