Saad • BN-TAFSEER-IBN-E-KASEER
﴿ قَالَ فَبِعِزَّتِكَ لَأُغْوِيَنَّهُمْ أَجْمَعِينَ ﴾
“[Whereupon Iblis] said: “Then [I swear] by Thy very might: I shall most certainly beguile them all into grievous error –”
Please check ayah 38:85 for complete tafsir.