Yeah, but he does not have the power over me that he had before I became a child of The God. I can resist him, and put him to shame.
James 4:7 AV
"Submit yourselves therefore to God. Resist the devil, and he will flee from you."
One has attained a measure of spiritual maturity when he/she has overcome the Wicked One:
1 Jn 2:13d-f,14d-h AV
"I write unto you, young men, because ye have overcome the wicked one. . . . I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one."
True.