And the L-rd your G-d will restore your captivity and have mercy upon you (Deut. 30:3)
Rabbi Shimon Bar Yochai said: How beloved is the nation of Israel unto G-d, for the Divine Presence accompanies the Jewish people no matter where their exile leads them. G-d Himself will return together with His people when He leads them out of the exile with the coming of Moshiach. (Zohar)
To love the L-rd your G-d...and to cleave unto Him (Deut. 30:20)
Rabbi Schneur Zalman of Liadi, author of the Tanya, used to say in the midst of his devotion: "Master of the Universe! I do not want your Garden of Eden, nor am I interested in the World to Come. I desire only You alone!"
If any of you are dispersed at the outermost parts of heaven, from there will the L-rd your G-d gather you (Deut. 30:4)
No matter how far a Jew may be from Torah and Judaism, G-d promises to gather him back into the fold of the Jewish people when Moshiach comes. When a Jew is spiritually brought back from "the outermost parts of heaven," it hastens Moshiach's coming and brings the Redemption closer. (Lubavitcher Rebbe, shlita)
See, I have set before you this day life and good, death and evil (Deut. 30:15)
One should not perform good deeds in order to live; one should live in order to perform good deeds. (Rabbi Menachem Mendel of Kotzk)