108 What then? Shall we esteem festival days by eating and drinking? But let no man judge us in respect of eating; “for we know that the Law is spiritual.” “Let no man therefore judge us in any meats or in drink, or in respect of a feast day or new moons, or a sabbath day, which are a shadow of the things to come, but the body is of Christ.” Let us, then, seek the body of Christ which the voice of the Father, from heaven, as it were the last trumpet, has shown to you at the time when the Jews said that it thundered; the body of Christ, which again the last trump shall reveal; for “the Lord Himself shall descend from heaven at the voice of the Archangel, and at the trump of God, and they that are dead in Christ shall rise again;” for “where the body is, there too are the eagles,” where the body of Christ is, there is the truth.
Source: On the Death of Satyrus (New Advent)