Al-An'aam • BN-TAFSEER-IBN-E-KASEER
﴿ بَلْ بَدَا لَهُم مَّا كَانُوا۟ يُخْفُونَ مِن قَبْلُ ۖ وَلَوْ رُدُّوا۟ لَعَادُوا۟ لِمَا نُهُوا۟ عَنْهُ وَإِنَّهُمْ لَكَٰذِبُونَ ﴾
“But nay -[they will say this only because] the truth which they used to conceal [from themselves] in the past will have become obvious to them; and if they were brought back [to life], they would return to the very thing which was forbidden to them: for behold, they are indeed liars!”
Please check ayah 6:30 for complete tafsir.