Contradiction with Matthew 24:36
Acts 1:11 suggests certainty in Jesus' return, while this verse says that no one knows the day or hour of His coming, implying uncertainty.
Matthew 24:36: But of that day and hour knoweth no [man], no, not the angels of heaven, but my Father only.
Contradiction with 1 Thessalonians 5:2
Acts 1:11 indicates visibility and assurance in Jesus' return, whereas this verse describes the day of the Lord coming unexpectedly, like a thief in the night.
1 Thessalonians 5:2: For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.
Contradiction with Luke 17:20-21
Acts 1:11 describes a visible return, while this passage suggests the kingdom of God does not come with observable signs.
Luke 17:20-21: And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation: [with...: or, with outward shew]
Contradiction with Mark 13:32
Acts 1:11 emphasizes the certainty of Jesus' return, but this verse states that no one, not even the Son, knows the timing, introducing uncertainty.
Mark 13:32: But of that day and [that] hour knoweth no man, no, not the angels which are in heaven, neither the Son, but the Father.
Paradox #1
The concept of Jesus physically ascending into the sky and being taken up into heaven, as described in Acts 1:11, could be seen as conflicting with our modern scientific understanding of space and gravity. Science tells us that the Earth is a planet in a vast universe with no specific "up" direction and no physical heaven located above us in the sky. Therefore, the idea of a physical ascent into heaven does not align with our knowledge of the structure of the cosmos.