This prophet predicts the very place in which Christ was born, saying, "And thou, Bethlehem, of the house of Ephratah, art the least that can be reckoned among the thousands of Judah; out of thee shall come forth unto me a leader, to be the prince in Israel; and His going forth is from the beginning, even from the days of eternity. Therefore will He give them [up] even until the time when she that travaileth shall bring forth; and the remnant of His brethren shall be converted to the sons of Israel. And He shall stand, and see, and feed His flock in the strength of the Lord, and in the dignity of the name of the Lord His God: for now shall He be magnified even to the utmost of the earth." 
The prophet Jonah, not so much by speech as by his own painful experience, prophesied Christ's death and resurrection much more clearly than if he had proclaimed them with his voice. For why was he taken into the whale's belly and restored on the third day, but that he might be a sign that Christ should return from the depths of hell on the third day?
I should be obliged to use many words in explaining all that Joel prophesies in order to make clear those that pertain to Christ and the Church. But there is one passage I must not pass by, which the apostles also quoted when the Holy Spirit came down from above on the assembled believers according to Christ's promise. He says, "And it shall come to pass after these things, that I will pour out my Spirit upon all flesh; and your sons and your daughters shall prophesy, and your old men shall dream, and your young men shall see visions: and even on my servants and mine handmaids in those days will I pour out my Spirit."