"The Lord shall count in the register of the peoples: 'This one was born there.' (Psalm 87:6) With regard to those nations who bring Israel [back to their land], it is written that they will be counted together with Israel. This means that they are born [again] with Israel, as if they were born at the same hour. 'This one was born there.' 'Selah.'" (Talmud, Tractate Megillah 14a.)
"And they sing like the flowing of springs in you." Rabbi Yehuda, son of Rabbi Simon, said in the name of Rabbi Meir: Just as a well springs forth fresh water every hour, so too does Israel sing a new song every hour. This is derived from the verse, "And they sing like the flowing of springs in you." The rabbis said: Just as men sing a song, so too do women sing a song, as it is written, "All the springs in you." And it is said, "A locked garden is my sister, my bride; a locked garden, a sealed spring." (Song of Songs 4:12)