John 4:32

"Rabbi," they said, "eat something." But he answered, "I have food to eat of which you know nothing."

John 4:34

Jesus said to them. "My food is to do the will of Him who sent me, and to accomplish his work.

Acts 20:35

"In all things I have set you an example, how that so toiling, you ought to help the weak and to remember the words of the Lord Jesus, how he himself said, "It is more blessed to give than to receive."

Revelation 2:17

He who has ears, let him listen to what the Spirit is saying to the churches. To him that overcomes I will give of the hidden manna, and I will give him a white stone, and upon the stone a new name written, which no man knows, but he that receives it.

Treasury of Scripture Knowledge

Summary

But he said unto them, I have meat to eat that ye know not of.

Bible References

I have

John 4:34
Jesus said to them. "My food is to do the will of Him who sent me, and to accomplish his work.
Acts 20:35
"In all things I have set you an example, how that so toiling, you ought to help the weak and to remember the words of the Lord Jesus, how he himself said, "It is more blessed to give than to receive."

That

Revelation 2:17
He who has ears, let him listen to what the Spirit is saying to the churches. To him that overcomes I will give of the hidden manna, and I will give him a white stone, and upon the stone a new name written, which no man knows, but he that receives it.