“many nations.” Micah 4:2 is almost identical to Isaiah 2:3. The Old Testament foretold that the Messiah would be a blessing both to the Jews and to the Gentiles, the “nations.” The first prophecy of the Messiah is the one God made to Adam and Eve in the Garden of Eden in Genesis 3:15, and that was thousands of years before the Jews existed. About 2,000 years after that first prophecy of the Messiah, God promised Abraham that all the people of earth, not just the Jews, would be blessed through him (Gen. 12:3). Then God repeated that promise to Isaac (Gen. 26:4); and to Jacob (Gen. 28:14). Besides those promises, the Old Testament had a number of verses that spoke of Gentiles being included in the Messianic Kingdom, which meant they were granted everlasting life (Ps. 102:15; Isa. 2:2-4; 19:23-25; 42:6; 49:6; 51:4-5; 56:3-7; 60:3; 66:18-21; Ezek. 39:21, 27; Micah 4:2; Hag. 2:7; Zech. 8:22).

“to the house of the God of Jacob.” The “house” of God is the Temple, and there will be a Temple in Jerusalem when Jesus rules the earth (see commentary on Ezek. 40:5, “of the house of God”).

“so that he can teach us about his ways.” Although Micah 4:2 and Isaiah 2:3 are about Christ’s Millennial Kingdom, there will be natural people in it who will marry, have children, and die, and those natural people will need to learn the laws of God. Jesus will be reigning as king in Jerusalem, which is why the law and knowledge of God will go forth from there. Those natural people will need to learn about God and His ways and laws.

[For more on the Millennial Kingdom of Christ on Earth, see Appendix 3, “Christ’s Future Kingdom on Earth.”]