Hebrews 4:10, “For he that is entered into his rest, he also hath ceased from his own works, as God did from his.”
God created the universe and all matter in six days, and on the seventh He rested, because the work was finished. The Lord Jesus cried out seven times from the Cross. The seventh was to triumphantly proclaim, “It is finished!” Then He relinquished His life. His sacrifice is complete. He rested because the work was finished. Likewise, suffering will and does continue for a season. We will enter into times of loss, but in Christ Jesus there is rest and refuge. Trust in His finished work. He will not only comfort us in our time of need but will ultimately give us rest in His presence in glory.