Used to argue that when a later messenger 'confirms what is with' earlier prophets, the confirmation is comprehensive, not merely partial.
Scripture spotlight
Quran 3:81
quran
81 And when God took compact with the Prophets: 'That I have given you of Book and Wisdom; then there shall come to you a Messenger confirming what is with you -- you shall believe in him and you shall help him; do you agree?' He said. 'And do you take My load on you on that condition?' They said, 'We do agree.' God said, 'Bear witness so, and I shall be with you among the witnesses.'
Quoted to argue that Muhammad must be recognized by earlier prophets and scriptures because he is said to confirm what they had.
Used in cross-examination to argue that a true later messenger must confirm prior revelation rather than contradict it.
The host used this verse to argue that Allah's promised messenger must confirm the previous scriptures people possess, so a later prophet who contradicts them would fail the test.
This verse was used to identify the 'covenant' as an obligation to support a later messenger confirming prior scripture, which the host argued implies the earlier scripture still stands.