98:1

The disbelievers from the People of the Book and the polytheists were not going to desist ˹from disbelief˺ until the clear proof came to them:
Meaning:-
Polytheist: belief in more than one god or in many gods.
Desist:to cease, as from some action or proceeding; stop.

98:2

A Messenger (Muhammad) from Allah, reciting (the Quran) purified pages [purified from Al-Batil (falsehood, etc.)].
Meaning:-
Falsehood: lie, untruth, fabrication, fairy tale.

98:5

And they have been commanded no more than this: To worship Allah, offering Him sincere devotion, being true (in faith); to establish regular prayer; and to practise regular charity; and that is the Religion Right and Straight.
Meaning:-
Devotion: religious worship, piety.

98:6

Indeed, they who disbelieved among the People of the Scripture and the polytheists will be in the fire of Hell, abiding eternally therein. Those are the worst of creatures.
Meaning:-
Polytheist: belief in more than one god or in many gods.
abiding: long-lasting, lifelong, permanent,
eternally: forever, permanent, everlasting, timeless, never-ending, nonstop.

98:8

Their reward with their Lord shall be the gardens of Eden, underneath which the rivers flow, to dwell therein forever. Allah shall be well pleased with them and they shall be well pleased with Him. That is for him who fears his Lord.
Meaning:-
Dwell: reside, live in or at a specified place.