Levites

So there I was reading Exodus and I see where God says he wants the tribe of Levi to be his special heritage because Levi's heart was tied to God's. So I start looking backward to where this great scene of Levi connecting to God is shown. NADA!!!! Just before God says how blessed the Levites are, the only other mention of Levi is the curse Jacob gives to him when he's on his deathbed.

Genesis 49:5 "Simeon and Levi are brothers— their swords are weapons of violence. Genesis 49:4-6

Genesis 34:25 Three days later, while all of them were still in pain, two of Jacob's sons, Simeon and Levi, Dinah's brothers, took their swords and attacked the unsuspecting city, killing every male. Genesis 34:24-26

Numbers 1:47 The families of the tribe of Levi, however, were not counted along with the others. Numbers 1:46-48

Numbers 1:49 "You must not count the tribe of Levi or include them in the census of the other Israelites." Numbers 1:48-50

Numbers 3:6 "Bring the tribe of Levi and present them to Aaron the priest to assist him." Numbers 3:5-7

Numbers 3:9 Give the Levites to Aaron and his sons; they are the Israelites who are to be given wholly to him. Numbers 3:8-10

Numbers 3:12 "I have taken the Levites from among the Israelites in place of the first male offspring of every Israelite woman. The Levites are mine," Numbers 3:11-13

"Take the Levites from among the other Israelites and make them ceremonially clean. Numbers 8:5-7

Interesting. I mean there is no place in the Bible that shows how this special relationship between Levi and God. Generally, we see everything. The interesting thing is that Levi is so cursed by his father, and yet his descendants are blessed. And we don't know why. At least not from the Bible. Moses gives us no record. Maybe there is some incident where Levi felt guilty about his sins. Who knows?