When the celebration of the feast of the Passover was accomplished, Joseph and Mary set out to return to Nazareth. They had complete confidence in Jesus, so they did not look for Him till they reached Bethany. Jesus was not there to be found. Anxious at heart the parents returned to Jerusalem; and there, after three days, they found Him discoursing in the temple with Shammai and the learned teachers of the temple. The boy's zeal for knowledge had caused Him to remain at the temple even after the feast was over. "And all that {16} heard Him were astonished at His understanding and answers." When Mary saw her son in the midst of the learned men of Israel, she cried to Him, "Son, why hast thou thus dealt with us? Behold, thy father and I have sought thee sorrowing." "And He said unto them. How is it that ye sought me? Wist ye not that I must be about my Father's business?" "And they understood not the saying which He spake unto them." [Sidenote: His Father's Business.] It was, indeed, a strange saying to understand. Not Joseph and Mary alone, but countless thousands of people have failed to understand it. Do you think you know what the boy Jesus meant? Of course, to understand, one must know what the Father's business is. Then we can understand what Jesus thought about His mission on the earth. "For," Jesus said many years later when He had grown to manhood, "I came down from heaven, not to do mine own will, but the will of Him that sent me." What, then, is the will of God? What is His Father's business? Once, many hundreds of years before Jesus was born, God gave to a man named Moses a marvelous revelation. Moses saw how the earth had been formed, and how living things were put upon it. He saw how man was shaped in the image of God and placed upon the earth to have dominion over it. Then God said to Moses, "Behold, this is my work and my glory--to bring to pass the immortality and eternal life of man." {17} This, then, is the Father's business; this is His will. It is exactly what Jesus told Joseph Smith, the great American Prophet, in our own dispensation: "And if you keep my commandments and endure to the end, you shall have eternal life, which gift is the greatest of all the gifts of God." And it is also exactly what Jesus taught while He dwelt among men. Said He, "And this is the will of Him that sent me, that every one which seeth the Son, and believeth on Him, may have everlasting life: and I will raise him up at the last day." [Sidenote: What is eternal life?]