Ever since man fell into sin, he has been restless. For the curse which fell upon mankind, when Adam sinned, gives man no rest. Resting is not ceasing from all activity. Man must cease from his physical activity, and take the rest of sleep in order to be able to work the next day. But while he sleeps, his heart keeps beating, and his body is performing the work of making it able to take up work once again as before.
When then in Matthew 11:28 Jesus says, "Came unto me all ye that labor and are heavy laden, and will give you rest, " He is not promising us idleness and inactivity. Do we not read of God resting the seventh day after creating heaven and earth and all their creatures? And is He inactive today? Do we not also in Hebrews 4:9 read that "there remaineth to the people of God" a rest? Will we then be idle in the new Jerusalem? No, we shall be very busy serving and praising God.
To enter into that blessed rest we must come unto Christ. For He earned it for us and opened the way for us to enter into it and enjoy it. He made it possible for restless people to have an end to their restlessness, and for them to enjoy being active in heavenly glory. His cross finished the work of salvation so that we could begin to walk in love for God.
And since we cannot get rid of our load of sin and guilt which is upon us, we have this call to come to Christ, Who removed our load of guilt which we hopelessly try to get rid of, and opened the door for us to come where, with body and soul, we may serve God every moment of everlasting life.
Seek then your salvation in Christ, for there is no rest for the weary except through Him. On His cross He cried out that it is finished. Through Him we can enter the glorious state and condition of serving God with perfect souls in glorified bodies.
Read: Hebrews 4 .
“The magnitude of the punishment (of sinners, MD) matches the magnitude of the sin…Now, a sin that is against God is infinite; the higher the person against whom it is committed, the graver the sin—it is more criminal to strike a head of state than a private citizen—and God is of infinite greatness. Therefore, an infinite punishment is deserved for a sin committed against Him.” Thomas Aquinas