Frank Ernest said:
			
		
	
	
		
		
			Jesus was a descendant of both David and Aaron. Therefore, he was of the tribes of both Judah (king) and Levi (priest).
		
		
	 
Not!
Mat 1:1-3 The book of the generation of Jesus Christ, the son of David, the son of Abraham. Abraham begat Isaac; and Isaac begat Jacob; and Jacob begat Judas and his brethren; And Judas begat Phares and Zara of Thamar; and Phares begat...
Since Phares didn't have to earthly fathers, that leaves out Aaron/Levi - END OF DEBATE! 
But wait, there's more...
Luk 3:33-34 ...which was [the son] of Phares, which was [the son] of Juda, which was [the son] of Jacob, which was [the son] of Isaac, which was [the son] of Abraham... 
You get TWO, that's 
TWO, New Testament records that confirm Phares descended from Juda -- not Levi 
(Thus your Arron/Levi assertion is patently unscriptural!)
But wait! There's still 
more!
If you'll read your Bible today, we have the following gift especailly for you!
Hbr 7:14 - - 
"For [it is] evident that our Lord sprang out of Juda... (
Juda... 
JUDA... {echo effect here})... 
of which tribe Moses spake nothing (
Nothing! Nothing! {echo effect here}) concerning priesthood."
Heberews 7:14.
Again that's, H E B E R E W S seven-fourteen! 
Read NOW!
[End of argument. You loose. God wins.]