You need what only he can give, and he delights to give it. Receive him with thanks, and get accustomed to feeling unworthy and on the receiving end of blessings. Be willing to benefit from his life and sacrifice.
There are still many things Jesus said that I don’t quite understand. This one certainly stands out.
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. Whoever feeds on my flesh and drinks my blood has eternal life, and I will raise him up on the last day. For my flesh is true food, and my blood is true drink.” (John 6:53–55)
Jesus is speaking to a diverse group of Jews—some believed, and some wanted to see if he would do a few more miracles like when he fed the five thousand. In such situations, Jesus could be more provocative and cryptic. Yet, at the same time, his purpose was that the people would believe in him, the Son of Man, sent from God. For those with ears to hear, what were they thinking about him at this point? Eat his flesh? Drink his blood?
Perhaps the most similar use of this concept is found in a lovely episode in David’s life (2 Samuel 23). While on the run from his enemies, David openly mused about the wells of Bethlehem and how pleasant it would be to drink from them, which was impossible given that the Philistines were garrisoned there. These were the words of a man who had been on the run for a while, and his thoughts were returning to things familiar. Little did he know that three of his “mighty men” heard these words and considered it an opportunity to bless this man whom they loved like a brother. At great risk to their own lives, they brought David water from the Bethlehem well.But he [David] would not drink of it. He poured it out to the LORD and said, “Far be it from me, O LORD, that I should do this. Shall I drink the blood of the men who went at the risk of their lives?” (2 Samuel 23:16–17)