Read the Bible to learn why you believe.
“The difference is that in true Christianity God elects according to His good pleasure alone (Ephesians 1) and in all other pagan philosophies some entity other than God supposedly elects or men elect themselves.”
Ephesians 1:
“In love 5 he predestined us for adoption as sons through Jesus Christ, according to the purpose of his will, 6 to the praise of his glorious grace, with which he has blessed us in the Beloved.”
” 11In him we have obtained an inheritance, having been predestined according to the purpose of him who works all things according to the counsel of his will, 12so that we who were the first to hope in Christ might be to the praise of his glory. 13In him you also, when you heard the word of truth, the gospel of your salvation, and believed in him, were sealed with the promised Holy Spirit, 14who is the guarantee of our inheritance until we acquire possession of it, to the praise of his glory.”
Predestine refers to a destination, not the means.
“[God] predestined us [believers] for adoption as sons through Jesus Christ, according to the purpose of his will”
Got it!
And note verse 14: In him you also, In him you also, when you heard the word of truth, the gospel of your salvation, and believed in him, were sealed with the promised Holy Spirit...
Still God’s work, we don’t do it by ourselves, but “when you heard the word of truth...and believed”, we “were sealed with the promised Holy Spirit”.
Is THAT irresistible grace? At a minimum, it must be assumed to be so, for the passage does NOT teach it thus.