by so much more Jesus has become a surety of a better covenant.
Hebrews 7:22
Surrounding context
7:21 (for they have become priests without an oath, but He with an oath by Him who said to Him: "The LORD has sworn And will not relent, "You are a priest forever According to the order of Melchizedek"'),
7:22 by so much more Jesus has become a surety of a better covenant.
7:23 Also there were many priests, because they were prevented by death from continuing.