These 2 passages of scripture show how we are saved and then sealed (baptized) with the Holy Spirit. They also reveal that the rejection (lack of belief) would have to be ours and not God's:
Rom 10:6 But the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down from above: )
Rom 10:7 Or, Who shall descend into the deep? (that is, to bring up Christ again from the dead.)
Rom 10:8 But what saith it? The word is nigh thee, even in thy mouth, and in thy heart: that is, the word of faith, which we preach;
Rom 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
Rom 10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
Rom 10:11 For the scripture saith, Whosoever believeth on him shall not be ashamed.
And then:
Eph 1:3 Blessed be the God and Father of our Lord Jesus Christ, who hath blessed us with all spiritual blessings in heavenly places in Christ:
Eph 1:4 According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love:
Eph 1:5 Having predestinated us unto the adoption of children by Jesus Christ to himself, according to the good pleasure of his will,
Eph 1:6 To the praise of the glory of his grace, wherein he hath made us accepted in the beloved.
Eph 1:7 In whom we have redemption through his blood, the forgiveness of sins, according to the riches of his grace;
Eph 1:8 Wherein he hath abounded toward us in all wisdom and prudence;
Eph 1:9 Having made known unto us the mystery of his will, according to his good pleasure which he hath purposed in himself:
Eph 1:10 That in the dispensation of the fulness of times he might gather together in one all things in Christ, both which are in heaven, and which are on earth; even in him:
Eph 1:11 In whom also we have obtained an inheritance, being predestinated according to the purpose of him who worketh all things after the counsel of his own will:
Eph 1:12 That we should be to the praise of his glory, who first trusted in Christ.
Eph 1:13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,
Eph 1:14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.