Ok so for us Christians, we celebrate Christmas because it is the birthday of Jesus Christ. so the birth of Jesus goes something like this :

SO what if some of the Haikyuu teams were there??? What will be their reaction??

Karasuno:

Suga and Daichi: Praise to the highest heavens! Our King is born!

Hinata: UWAHHHHH HES SO SMOL

kageyama: shUt uP hinatab0ke yOure too lOud

Suga: 😨😨😨 thou shalt not curse infront of Jesus, kageyama watch your language !!!!! 😨😨😨😨

Tsukishima: Do they even know who they're looking at

Yamaguchi: nIcEe tSuKki!!!!!!

Asahi: he's so small but I already feel the power emanating from him... Help I'm scared

Noya and Tanaka:  WAHHHHH IT'S THE LORD OUR GOD WE MUST FOLLOW HIM! CAN U SIGN MY ROBES AND I PRAY THAT KIYOKO SAN WILL FINALLY NOTICE ME

Seijoh:

Oikawa: WAHHHH THIS CHILD IS BEAUTIFUL (like me)

Iwaizumi: vanity is a sin bro

Oikawa: but that's what Jesus is for he's here to save us from our sins!

Iwaizumi: I think half the sins from the world population came from you.

Oikawa: MEAN IWA CHANNNN

Fukurodani:

Bokuto, waving his hands excitedly : HEYHEYHEYHEY JESUS I HEARD SO MUCH ABOUT YOU. wait a minute, why don't I feel saved from my sins yet??? JESUS EGGSPLAIN

Akaashi: Jesus is only an infant bokuto-san he can't even talk yet 

Nekoma:

Kuroo, grinning creepily: ohohohoho is this baby Jesus

Kenma: stop that you look like you're gonna eat him

Lev:  hey Yaku you're as short as an infant

Yaku: talk shit get hit

Lev: 00F

Shiratorizawa:

Ushijima: Jesus you should come to the shiratorizawa temple tomorrow to teach us