14 For it is clear that our Lord descended from Judah, and in regard to that tribe Moses said nothing about priests.

Read Hebrews 7:14 Using Other Translations

For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood.
For it is evident that our Lord was descended from Judah, and in connection with that tribe Moses said nothing about priests.
What I mean is, our Lord came from the tribe of Judah, and Moses never mentioned priests coming from that tribe.