To know Jesus you must have a relationship with him, that is not only know who he is but you must recognize what he has done for you and recognize him as your lord and savior.
โFor God so loved the world, that he gave his only Son,
that whoever believes in him should not perish but have eternal life"
(John 3:16)
Knowing Jesus is not just reading and studying about him but:
ยซAnd we know that the Son of God has come and has given us understanding,
so that we may know him who is true; and we are in him who is true,
in his Son Jesus Christ. He is the true God and eternal life.ยป
(1 John 5:20)