38For I have come down from heaven, not to do my own will but the will of him who sent me. 39And this is the will of him who sent me, that I should lose nothing of all that he has given me, but raise it up on the last day. (John 6:38-39)
How beautifully His [Jesus] words harmonize! He says: “I will not cast you out.” That is His will; and He adds that He wants to do the will of the Father, which is the same, namely, not to cast us out. St. John joins and weaves the two wills together, making the being of the Father and of the Son one – one will, one mind, one wisdom, one work, yes, one Godhead, and one thing. He presents Himself to us in His kindness because He wants to induce us to cling to Him. He wants me to know that when I hear the Son’s will, I hear the Father’s will at the same time. If you see the Son, you also see the Father. Luther’s Works, v. 23, 61
It is necessary for us to note well which will of the Father is indicated here and what the true, genuine, and fatherly will is. For the Father wills and wants many things. He also wants the Ten Commandments to be kept. He wants you to honor your parents and to refrain from theft and fornication. But here the reference is to a different will of God, namely, to His will that Christ be the living and heavenly bread which will give eternal life to all and help men reach heaven. Luther’s Works, v. 23, 68-69