John 6:48

⁴⁶ Not that any man hath seen the Father, save he which is of God, he hath seen the Father.

⁴⁷ Verily, verily, I say unto you, He that believeth on me hath everlasting life.

I am that bread of life.

⁴⁹ Your fathers did eat manna in the wilderness, and are dead.

⁵⁰ This is the bread which cometh down from heaven, that a man may eat thereof, and not die.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

John 6:51
I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.
Read in context
1 Corinthians 11:24–25
And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.
Read in context
1 Corinthians 10:16–17
The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?
Read in context
John 6:41
The Jews then murmured at him, because he said, I am the bread which came down from heaven.
Read in context
John 6:33–35
For the bread of God is he which cometh down from heaven, and giveth life unto the world.
Read in context