Prepare for the Kingdom of heaven

Mt 4:17
From that time on Jesus began to preach, “Repent, for the kingdom of heaven has come near.”

Life is uncertain. Nobody knows what may happen tomorrow. God took pity on us, poor men, and came to this earth in the flesh to save us. He urged repentance, saying, “Repent, for the kingdom of heaven is near,” and taught us that we must have eternal life in order to go back to heaven.

Jn 6:27-58
“Do not work for food that spoils, but for food that endures to eternal life, which the Son of Man will give you. For on him God the Father has placed his seal of approval.” . . . Then Jesus declared, “I am the bread of life. Whoever comes to me will never go hungry, and whoever believes in me will never be thirsty . . . unless you eat the flesh of the Son of Man and drink his blood, you have no life in you. Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day. For my flesh is real food and my blood is real drink . . .”

Jesus came to this earth to give us food that gives eternal life, saying, “Repent, for the kingdom of heaven is near.” He Himself became the bread of life, and promised eternal life to mortal men through His flash and blood.
We can find out what represents Jesus’ flash and blood through the truth of the Passover.

Mt 26:17-19, 26-28
. . . So the disciples did as Jesus had directed them and prepared the Passover . . . While they were eating, Jesus took bread, and when he had given thanks, he broke it and gave it to his disciples, saying, “Take and eat; this is my body.” Then he took a cup, and when he had given thanks, he gave it to them, saying, “Drink from it, all of you. This is my blood of the covenant, which is poured out for many for the forgiveness of sins.

Lk 22:7-20
. . . When the hour came, Jesus and his apostles reclined at the table. And he said to them, “I have eagerly desired to eat this Passover with you before I suffer . . .” And he took bread, gave thanks and broke it, and gave it to them, saying, “This is my body given for you; do this in remembrance of me.” In the same way, after the supper he took the cup, saying, “This cup is the new covenant in my blood, which is poured out for you.

The disciples prepared the Passover as Jesus had directed them, and Jesus said He had eagerly desired to eat the Passover. This clearly shows us that the Passover is an essential truth of our faith.
He spoke of the Passover bread as His body and the wine as His blood of the covenant. This is the new covenant established by God. He declared the Passover to be the new covenant, and promised to give eternal life to those who eat and drink the Passover bread and wine which represent Jesus’ flash and blood. Through new covenant, we can receive the promise of eternal inheritance in heaven(Heb 9:15-17).
Those who have eternal life will go to Heaven, but those who do not receive it will go to hell. The Passover of the new covenant provides a criterion to discern between the place where we have to go and the place where we must not enter.