Early Old Testament prophecy taught the need of personal and national righteousness, and foretold the ultimate blessedness of the righteous nation on the present earth.

The events are the "day of the Lord" foretold in Old Testament prophecy.

It was intended, quite flamboyantly, to fulfil Old Testament prophecy.

The whole story of Jesus' birth seems to be an expansion of an Old Testament prophecy found in Micah:

Justin occasionally uses the Gospel of Matthew directly as a source for Old Testament prophecies to supplement his testimony sources.

The decorative schemes usually incorporated Biblical stories, emphasizing visual typological allegories between Old Testament prophecy and the New Testament.

Verse 14 is one of many in Matthew introducing an Old Testament prophecy.

This fulfilled another Old Testament prophecy about the Messiah, which is that his bones would remain unbroken.

In effect, dozens of these Old Testament prophecies created a fingerprint that only the true Messiah could fit.

They also believe that their gathering has Biblical roots and that their purpose is to help fulfill Old Testament prophecy and the promises of Jesus.