Revelation 13:17
And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.
Cross-reference
In Rev 13:16, the cause is given: all people are forced to receive the mark, which then enables buying and selling.
In Rev 13:18, the number of the beast is introduced for calculation — linking the mark to a specific number.
Revelation 13:11 introduces the second beast who later enforces the mark — this restriction results from its deception.
In Rev 3:12, the victorious receive God's name written on them — contrasting the beast's mark required for commerce.
In Rev 14:11, those with the mark face eternal torment — adding the dire consequence of compliance.
In Rev 15:2, those who overcame the beast and its mark stand victorious — showing the alternative outcome.
In Rev 22:4, the redeemed have God's name on their foreheads — contrasting the beast's mark.
Revelation 18:11 shows merchants mourning because trade stops — similar economic control as the beast's mark restricting buying/selling.
In Daniel 3:10, a decree forces worship of an image — similar to the beast's mark required for trade here. Both demand allegiance.