Allah said,

﴿طµظگط±ظژط§ط·ظژ ط§ظ„ظ‘ظژط°ظگظٹظ†ظژ ط£ظژظ†ظ’ط¹ظژظ…ظ’طھظژ ط¹ظژظ„ظژظٹظ’ظ‡ظگظ…ظ’﴾

(The way of those upon whom you have bestowed Your grace), when He mentioned His favor. On mentioning anger, Allah said,

﴿ط؛ظژظٹظ’ط±ظگ ط§ظ„ظ’ظ…ظژط؛ظ’ط¶ظڈظˆط¨ظگ ط¹ظژظ„ظژظٹظ’ظ‡ظگظ…ظ’﴾

(Not (that) of those who earned Your anger), without mentioning the subject, although it is He Who has sent down the anger on them, just as Allah stated in another Ayah,

﴿ط£ظژظ„ظژظ…ظ’ طھظژط±ظژ ط¥ظگظ„ظژظ‰ ط§ظ„ظ‘ظژط°ظگظٹظ†ظژ طھظژظˆظژظ„ظ‘ظژظˆظ’ط§ظ’ ظ‚ظژظˆظ’ظ…ط§ظ‹ ط؛ظژط¶ظگط¨ظژ ط§ظ„ظ„ظ‘ظژظ‡ظڈ ط¹ظژظ„ظژظٹظ’ظ‡ظگظ…﴾

(Have you (O Muhammad ) not seen those (hypocrites) who take as friends a people upon whom is the wrath of Allah (i.e. Jews)) (58:14).

Also, Allah relates the misguidance of those who indulged in it, although they were justly misguided according to Allah's appointed destiny. For instance, Allah said,

﴿ظ…ظژظ† ظٹظژظ‡ظ’ط¯ظگ ط§ظ„ظ„ظ‘ظژظ‡ظڈ ظپظژظ‡ظڈظˆظژ ط§ظ„ظ’ظ…ظڈظ‡ظ’طھظژط¯ظگ ظˆظژظ…ظژظ† ظٹظڈط¶ظ’ظ„ظگظ„ظ’ ظپظژظ„ظژظ† طھظژط¬ظگط¯ظژ ظ„ظژظ‡ظڈ ظˆظژظ„ظگظٹظ‘ظ‹ط§ ظ…ظ‘ظڈط±ظ’ط´ظگط¯ظ‹ط§﴾

(He whom Allah guides, he is the rightly-guided; but he whom He sends astray, for him you will find no Wali (guiding friend) to lead him (to the right path)) (18:17)

and,

﴿ظ…ظژظ† ظٹظڈط¶ظ’ظ„ظگظ„ظگ ط§ظ„ظ„ظ‘ظژظ‡ظڈ ظپظژظ„ط§ظژ ظ‡ظژط§ط¯ظگظٹظژ ظ„ظژظ‡ظڈ ظˆظژظٹظژط°ظژط±ظڈظ‡ظڈظ…ظ’ ظپظگظ‰ ط·ظڈط؛ظ’ظٹظژظ€ظ†ظگظ‡ظگظ…ظ’ ظٹظژط¹ظ’ظ…ظژظ‡ظڈظˆظ†ظژ ﴾

(Whomsoever Allah sends astray, none can guide him; and He lets them wander blindly in their transgression) (7:186).

These and several other Ayat testify to the fact that Allah alone is the One Who guides and misguides, contrary to the belief of the Qadariyyah sect, who claimed that the servants choose and create their own destiny. They rely on some unclear Ayat avoiding what is clear and contradicts their desires. Theirs, is the method of the people who follow their lust, desire and wickedness. An authentic Hadith narrated,

آ«ط¥ظگط°ظژط§ ط±ظژط£ظژظٹظ’طھظڈظ…ظڈ ط§ظ„ظ‘ظژط°ظگظٹظ†ظژ ظٹظژطھظ‘ظژط¨ظگط¹ظڈظˆظ†ظژ ظ…ظژط§ طھظژط´ظژط§ط¨ظژظ‡ظژ ظ…ظگظ†ظ’ظ‡ظڈ ظپظژط£ظڈظˆظ„ط¦ظگظƒظژ ط§ظ„ظ‘ظژط°ظگظٹظ†ظژ ط³ظژظ…ظ‘ظژظ‰ ط§ظ„ظ„ظ‡ظڈ ظپظژط§ط­ظ’ط°ظژط±ظڈظˆظ‡ظڈظ…ظ’آ»

(When you see those who follow what is not so clear in it (the Qur'an), then they are those whom Allah has mentioned (refer to 3:7). Hence, avoid them.)

The Prophet was referring to Allah's statement,

﴿ظپظژط£ظژظ…ظ‘ظژط§ ط§ظ„ظ‘ظژط°ظگظٹظ†ظژ ظپظ‰ ظ‚ظڈظ„ظڈظˆط¨ظگظ‡ظگظ…ظ’ ط²ظژظٹظ’ط؛ظŒ ظپظژظٹظژطھظ‘ظژط¨ظگط¹ظڈظˆظ†ظژ ظ…ظژط§ طھظژط´ظژظ€ط¨ظژظ‡ظژ ظ…ظگظ†ظ’ظ‡ظڈ ط§ط¨ظ’طھظگط؛ظژط¢ط،ظژ ط§ظ„ظ’ظپظگطھظ’ظ†ظژط©ظگ ظˆظژط§ط¨ظ’طھظگط؛ظژط¢ط،ظژ طھظژط£ظ’ظˆظگظٹظ„ظگظ‡ظگ﴾

(So as for those in whose hearts there is a deviation (from the truth) they follow that which is not entirely clear thereof, seeking Al-Fitnah (polytheism and trials), and seeking for its hidden meanings)(3:7).

Verily, no innovator in the religion could ever rely on any authentic evidence in the Qur'an that testifies to his innovation. The Qur'an came to distinguish between truth and falsehood, and guidance and misguidance. The Qur'an does not contain any discrepancies or contradictions, because it is a revelation from the Most Wise, Worthy of all praise.