“Benayahu the son of Yehoyada, ben ish chai (the son of a living man, read as ben ish chayil, the son of a valiant man) of Kabzeel, who had done mighty deeds, he killed the two sons of Ariel of Moab. He went down also and killed a lion in the midst of a pit in time of snow. He killed an Egyptian, a goodly man: and the Egyptian had a spear in his hand; but he went down to him with a staff, and plucked the spear out of the Egyptians hand, and killed him with his own spear. Benaiah the son of Jehoiada did these things, and had a name among the three mighty men. He was more honorable than the thirty, but he didnt attain to the three. David set him over his guard.”
2 Samuel 23:20-23

“Now I will tell you as much as I can of this sod, since it is hidden and sealed. I will explain to you this matter well. Through the power of his great and mighty  actions, he went down and smote the evil lion – this is the lion that devours and roars when linking itself to the ’empty pit’ … That is where he smote it and there he overpowered it on the ‘day of the snowstorm’ – on the great day of unyielding din.”
R’ Moshe Chayyim Luzzato, Ma’amar HaGeulah, Feldheim Publishers, pg. 103-104

“Be sober and self-controlled. Be watchful. Your adversary, the devil, walks around like a roaring lion, seeking whom he may devour.”
1 Peter 5:8

BENAYAHU

YESHUA

Benayahu (Son of God)
2 Samuel 23:20

Son of God

Ben Ish Chai (son of a Living Man)
2 Samuel 23:20

Is an Ish Chai, a Living Man

Killed a Lion
2 Samuel 23:20

Like Samson killed a Lion
Judges 14:5-9

Lion David killed a Lion
1 Samuel 17:34-37

Mashiach kills the Evil Lion (the Accuser)

In a Pit
2 Samuel 23:20

Like Yosef in a Pit
Genesis 37:24

David is spoken of as “hidden” in a pit
2 Samuel 17:9

Like Yonah HaNavi
Yonah 2:6

Like Daniel in a den of lions
Daniel 6:16-27

Mashiach comes out of the pit
Psalm 30:3

On a Snowy Day
2 Samuel 23:20

On the Day of Judgment

He Killed an Egyptian
2 Samuel 23:21

Like Moshe killed an Egyptian
Exodus 2:12 

Mashiach will kill Armilus (the Antichrist)
Isaiah 11:4, Targum to Isaiah 11:4