Biblically according to Join in context Jesus IS eternal life
Jn 6:53 So Jesus said to them, "Truly, truly, I say to you, unless you eat the flesh of the Son of man and drink his blood, you have no life in you;
54 he who eats my flesh and drinks my blood has eternal life, and I will raise him up at the last day.
Jn 6:40 For this is the will of my Father, that every one who sees the Son and believes in him should have eternal life; and I will raise him up at the last day."
This part is just my opinion, so take it or leave it as you will, but in 40 it says “everyone who sees” him, the only ones who believe it is really Jesus are Catholic and Orthodox (some Lutherans, Methodists only after consumption) We see him.
When Jesus is referring to eternal life in the passage he isn’t speaking of yours, he is speaking of HIS eternal life.
Jn 17:2 since thou hast given him power over all flesh, to give eternal life to all whom thou hast given him.
3 And this is eternal life, that they know thee the only true God, and Jesus Christ whom thou hast sent.
Egocentrism tells us he is talking about us, when he is actually talking about himself with regard to eternal life. Without him you have no eternal life within you.
Peace and God Bless