Musar su Deuteronomio 20:5

מי האיש אשר בנה בית חדש ולא חנכו ילך וישוב לביתו . The same rule applies to someone who has planted a vineyard and not consecrated it, or to someone who is betrothed to a girl and has not yet wed her. Remember that there are three periods each of which is described as עולם הבא, "the World to Come," as we know from the Sabbath morning prayer הכל יודוך. In our liturgy we describe these various periods of time as 1) חיי העולם הבא, 2) ימות המשיח, 3) תחיית המתים. The period described as חיי העולם הבא refers to a "home," i.e. a dwelling equipped with the type of furnishings that are in keeping with the relative merit each righteous person has achieved during his lifetime on earth. The period called ימות המשיח refers to the period when man and woman join in matrimony, i.e. when G–d and the mystical equivalent of the Jewish people called כנסת ישראל form a permanent bond. This period is referred to by the prophet Isaiah 62,5: "As a youth espouses a maiden, your sons shall espouse Me; and as a bridegroom rejoices over his bride, so will your G–d rejoice over you." After this period called תחיית המתים, "the resurrection of the dead," there comes the period of eternity, something which has not been described by any prophet since none have been shown it. Our sages have alluded to this period as the period of the יין המשומר בענביו מששת ימי בראשית והוא כרם השם צבאות, a period when wine will be served which has been preserved in its grapes ever since the six days of Creation. G–d regards this as His personal vineyard. A sinner has to return home instead of fighting in the war called מלחמת רשות. A sinner is a person who has not yet completed his preparations for entry into any of these phases of the World to Come. The Torah merely alludes to this by giving examples of people who have undertaken three different types of crucial enterprises without having completed their tasks. When the Torah stresses that anyone of these three categories of people is to ישוב לביתו "return" home, this is a not so subtle hint to the sinner to engage in repentance, תשובה.