The Three Oaths is the popular name for a Midrash found in the Talmud, which relates that God adjured three oaths upon the world. Two of the oaths pertain to the Jewish people, and one of the oaths pertains to the other nations of the world. The Jews for their part were sworn not to forcefully reclaim the Land of Israel and not to rebel against the other nations, and the other nations in their turn were sworn not to subjugate the Jews excessively.
Amongst Orthodox Jews today there are primarily two different ways of viewing this Midrash. Of the Haredim, those who are strongly anti-Zionist often view this Midrash as not being fulfilled, whereas Religious Zionists view it as being fulfilled and maintained, and now obsolete. Both buttress their positions by citing historic rabbinic sources in favor of their view.
The context of the Talmudic dialogue containing the Three Oaths is a discussion in which attempts are made to defend Rav Zeira's desire to leave Babylon and go to the Land of Israel. It begins on Ketubot 110b and continues on 111a (where the Three Oaths are plainly conveyed). The Gemara quotes R. Yossi ben R. Chanina:
"Why/What are these Three Oaths? One, that Israel should not storm the wall {RaShI interprets: forcefully}. Two, the Holy One adjured Israel not to rebel against the nations of the world. Three, the Holy One adjured the nations that they would not oppress Israel too much"."
The Midrash is in large part an exegetical analysis of three separate verses in the Song of Songs, and naturally reflects the traditional interpretation, which sees the entire book as an allegory for the relationship between God and the Jewish people. The three verses are: