Concerning Allah's statement,
[وَلَقَدْ
أَرَيْنَـهُ ءَايَـتِنَا كُلَّهَا فَكَذَّبَ وَأَبَى ]
(And indeed We showed him (Fir`awn) all Our Ayat, but he denied and refused.)
This means that the proofs, signs and evi- dences were establi- shed against
Fir`awn and he saw them with his own eyes, but he still denied and rejec- ted
them due to his disbelief, abstinence and transgression. This is as Allah, the
Exalted, says,
[وَجَحَدُواْ بِهَا
وَاسْتَيْقَنَتْهَآ أَنفُسُهُمْ ظُلْماً وَعُلُوّاً]
(And they belied them wrongfully and arrogantly, though they themselves were
convinced thereof.) [27:14]
[قَالَ أَجِئْتَنَا
لِتُخْرِجَنَا مِنْ أَرْضِنَا بِسِحْرِكَ يمُوسَى - فَلَنَأْتِيَنَّكَ بِسِحْرٍ
مِّثْلِهِ فَاجْعَلْ بَيْنَنَا وَبَيْنَكَ مَوْعِداً لاَّ نُخْلِفُهُ نَحْنُ وَلاَ
أَنتَ مَكَاناً سُوًى - قَالَ مَوْعِدُكُمْ يَوْمُ الزِّينَةِ وَأَن يُحْشَرَ
النَّاسُ ضُحًى ]
(57. He (Fir`awn) said: "Have you come to drive us out of our land with your
magic, O Musa'') (58. "Then verily, we can produce magic the like thereof; so
appoint a meeting between us and you, which neither we nor you shall fail to
keep, in an open place where both shall have a just and equal chance.'') (59.
(Musa) said: "Your appointed meeting is the day of the festival, and let the
people assemble when the sun has risen (forenoon).'')