Midras Ulangan 11:21: Ein Yaakov (Glick Edition), Bamidbar Rabbah, Mekhilta DeRabbi Yishmael & Midrash Tanchuma Buber

R. Levi said: "Whoever has a synagogue in his town, and does not go there to pray, is to be called a wicked neighbor, as it is said (Jer. 12, 14.) Thus hath said the Lord against all my wicked neighbors; moreover by his actions he causes exile to himself and his children, as it is said (Ib.) I will pluck them out of their land, and the house of Judah will I pluck out from the midst of them." They told R. Jochanan. that there are aged people in Babylon, and he remarked wonderingly, "It is written (Deu. 11, 21.) In order that your days may be multiplied, and the days of your children in the land which the Lord swore unto your fathers, but not outside of Palestine." But when he was informed [of the fact] that they come early to the synagogue, and leave it late, then he said: "Aye, it is this which helps them, as R. Jochanan b. Levi said unto his children, 'Come early and remain late in the synagogue, in order that you may live long.'" R. Acha the son of R. Chanina said: "From what Biblical passage [do we learn this]? Happy is the man that hearkeneth unto me, watching day by day at my gates, waiting at the posts of my doors (Pr. 8, 34), and after this is written. For he who finds me, finds life." R. Chisda said: "A man shall always enter two doors to the synagogue." What does he mean by "two doors"? He means that a man should wait as long as it takes to walk the length of two doors, and then begin to pray.

We are taught in another Baraitha that R. Eliezer says: "The Messianic period will be forty years," as it is written here (Deut. 8, 3) And he afflicted thee, and suffered thee to hunger, and it is written there (Ps. 90, 15) Cause us to rejoice as many days as those wherein Thou hast afflicted us." [Just as their journey in the desert was forty years, so long will be the days of the Messiah.] R. Dosa, however, says: "Four hundred years, as it is said Cause us to rejoice as many days as thou hast afflicted us, and it is also written (Gen. 15, 13) And they will afflict them four hundred years." Rabbi said: "Three hundred and sixty-five years, according to the days of the Solar year, as it is said (Isa. 63, 4) For the days of vengeance was in my heart, and the year of My redeemer was come." What does the day of vengeance is in My heart mean? R. Jochanan said: "I revealed it to My heart, but not to any other member of My body." And R. Simon b. Lakish said: "I revealed it to My heart, but not to the ministering angels." Abimi b. Obahu taught: "Seven thousand years will be the Messianic period for Israel, as it is said (Ib. 62, 5) And as a bridegroom is glad over the bride, so will thy God be glad over thee." R. Juda said in the name of Samuel: "The Messianic period will be as long as it is from the day of creation till now," as it is said (Deut. 11, 21) As the days of heaven over the earth." R. Nachman b. Isaac said: "As from the day of Noah till now," as it is said (Is. 54, 9) For as the waters of Noah is this unto Him! as I have sworn, etc."

R. Simon b. Pazi said in the name of R. Joshua b. Levi, who spoke in the name of bar Kappara: "Whoever sheds tears upon the death of an upright person, the Holy One, praised be He! will number and store it in His treasure, as it is said (Ps. 56, 9.) My wandering hast Thou well numbered; put Thou my tears into thy bottle; behold they are numbered by Thee." R. Juda in the name of Rab said: "Whoever is slow to mourn the death of a Chacham (scholar) is destined to be buried alive, as it is said (Jos. 24, 30.) And they buried him on the border of his inheritance at Timnath Serach, which is on the mountain of Ephraim, on the north side of Mt. Ga'ash. i.e., Ga'ash (storm). We infer from this that the mountain stormed at them (Israel) and wished to destroy them [because they did not mourn the death of Joshua] . R. Chiya b. Abba in the name of R. Jochanan said: "Whoever is slow to mourn the death of a scholar will not live long. This is a retaliation, as it is said (Is. 27, 8.) In measure, by driving him forth, thou strivest with him." The following objection was raised to R. Jochanan by R. Chiya b. Abba: "And the people served the Lord all the days of Joshua, and all the days of the elders that lived many days after Joshua (Judg; 2, 7.) [Hence they were not punished.]" "Thou Babylonian!" said R. Jochanan to him, "it says many days but not many years." According to this interpretation, the passage (Deu. 11, 21.) In order that your days may he multiplied, and the days of your children, would also mean days and not years. When it alludes to a blessing, it is different. R. Chiva b. Abba in the name of R. Jochanan said also: "If one brother dies, all the remaining brothers should feel anxious [examine their deeds]. If a member of a society should die, let the whole society become anxious. According to some, this is so only when the most important one among them should die, and according to others, only when the least important one should die."