The Lion of Judah is a direct reference to who? answer with Scripture.?

The correct answer is: not always the same person. In fact: not always a person.

Genesis Chapter 49

1 And Jacob called unto his sons, and said, Gather yourselves together, that I may tell you that which shall befall you in the last days.

2 Gather yourselves together, and hear, ye sons of Jacob; and hearken unto Israel your father.

9 Judah is a lion's whelp: from the prey, my son, thou art gone up: he stooped down, he couched as a lion, and as an old lion; who shall rouse him up?

10 The sceptre shall not depart from Judah, nor a lawgiver from between his feet, until Shiloh come; and unto him shall the gathering of the people be.

11 Binding his foal unto the vine, and his a$$'s colt unto the choice vine; he washed his garments in wine, and his clothes in the blood of grapes:

12 His eyes shall be red with wine, and his teeth white with milk.

(King James Version)

Jesus and he was born of the Israel's tribe of Judah and in scripture he is called a lion.

It is the symbol of the Israelite tribe of Judah (he was the 4th son of Jacob) Genesis 49:9. The Lion of Judah is also mentioned in the Book of Revelations as a term representing Jesus, Revelations 5:5.

Jesus Christ.

I'll have to get the scripture passage and come back to you as I'm on the move currently.