For who regards you as superior? What do you have that you did not receive? And if you did receive it, why do you boast as if you had not received it? - 1 Cor 4:7
He not only chose you before you chose Him (John 15:16), and loved you before you had any love for Him (1 John 4:19), but acted upon you before you acted toward Him.
He had to speak the quickening word before you could come forth from your spiritual grave (John 11:43),
open your blind eyes ere you were able to see your lost condition,
change your heart before you were disposed to seek Him,
and draw (John 6:44) ere you came to Him.
Thus you have no ground for boasting, nothing for which you can take any credit unto yourself.
All the glory of your salvation belongs alone unto the Lord.