Numbers 24:1-2 And when Balaam saw that it pleased the LORD to bless Israel, he went not, as at other times, to seek for enchantments, but he set his face toward the wilderness. (2) And Balaam lifted up his eyes, and he saw Israel abiding in his tents according to their tribes; and the spirit of God came upon him.Yet Balaam was no friend of God or God's people, as you well know, nor was he ever, but God prevented him from cursing His people by sending His Spirit upon him. There is a whole subtopic here of "common grace," which we will not address for now, but it is quite interesting as a way to understand these kinds of events.
Daniel 4:16 Let his heart be changed from man's, and let a beast's heart be given unto him; and let seven times pass over him.This is not described as the Holy Spirit's work, yet it is still using the language of a changed heart. So clearly a changed heart in OT context does NOT automatically imply anything like New Covenant regeneration.
Proverbs 21:1 The king's heart is in the hand of the LORD, as the rivers of water: he turneth it whithersoever he will.So arguing from the greater to the lesser, if even the king's heart may be turned as God sees fit for His own purposes, anyone's heart might be thus turned, and not necessarily for salvation, but to work out the purposes of God. For example again, the voluntary/involuntary prophecy of Caiaphas the High Priest, that one man should suffer for the nation. And no one I hope is going to argue that wicked man was momentarily regenerate. Such a desperate appeal to a false consistency would end up being a mockery of what we have been given in the New Covenant understanding of the washing of regeneration, the washing away of all of our sin by the blood of Jesus, the new birth that makes us new creations ready to see God's kingdom, the life that is within us which is eternal life, and therefore can never end, either in this life or the next. It is not eternal if it can be lost.
Ephesians 2:8-9 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: (9) Not of works, lest any man should boast.The gender mismatch argument you mentioned does not solve the organization of this passage. There is a gender mismatch between the neuter that (touto) in that not of yourselves, and the earlier noun pistos, faith, which is feminine. However, this does not unlink "faith" from "gift of God," because charis (grace) is also feminine, and sodzo (save) is masculine, theoretically leaving the neuter touto pointing to ... nothing? How can that be? If faith is not the referent, what is? Based on your theory of gender mismatch, it cant refer to any of the other preceding components of salvation either.
I have some comments to make much later, but let me suggest that you consider that The Faith is the faith of The Christ, His abiding faith in The Father evidenced by His faithfulness to Him, seen by the completely committed trust on the Cross: "Father, into thy hands I commend My spirit," and died, placing the revivication totally into the government of The Father, whence His physical body stopped functioning and was laid to rest; but his soul departed for Sheol/Paradise.
Jesus was completely trusting The Father to rejoin His soul, spirit, and body together as one. (It may be that Adam had the same trust in God, before he carried out his disobedience, then spiritually died, and bequeathed his progeny with the ensuing spiritual death.)
It was The Lord Jesus Christs Faith, which also is designated by The Faith, by which we are saved. Our faith may fail in times of great testing but His Faith did not and will not fail under any circumstance. Therefore we must rely on His Faith forevermore (Wittman., from Seven Baptisms of the New Testament, IV. The Baptism of Violent Death.)
Remember, in the context of Eph. 2, The God quickened us from spiritual death, being dead in trespasses and sins through The Faith. Dead people have no power of any kind. AFIK.
I suspect you may agree that both ideas are the gift of God. I am persuaded that "faith alone" is not the gift of God. To do so conflicts with James. I regard faith as obedience to hearing God's Word through the Holy Spirit's conviction. It is further seen here in Isaiah, Romans, 2Peter, and Revelation: 5For Moses describeth the righteousness which is of the law, That the man which doeth those things shall live by them. 6But 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:) 7Or, Who shall descend into the deep? (that is, to bring up Christ again from the dead.) 8But 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; 9That 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. 10For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. 11For the scripture saith, Whosoever believeth on him shall not be ashamed. 12For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him. 13For whosoever shall call upon the name of the Lord shall be saved.
19I have not spoken in secret, in a dark place of the earth: I said not unto the seed of Jacob, Seek ye me in vain: I the LORD speak righteousness, I declare things that are right.
9 The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
16 I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star. 17 And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is athirst come. And whosoever will, let him take the water of life freely.
but much to be grateful for. And since we are all catholic now: