Acts 2:19 directly quotes Joel 2:30 — the wonders and signs are part of Joel's prophecy of the day of the Lord.

Mark 13:24 also predicts the sun's darkening and moon's failure — parallel to the same signs before the day of the Lord.

Luke 21:25 speaks of signs in sun, moon, and stars — directly aligning with the celestial wonders in Acts 2:20.

Revelation 6:12 shows the sun black and moon like blood — identical to the cosmic signs before the day of the Lord here.