Salvation is not by grace alone, but by grace through faith.
For by grace you have been saved through faith, and that not of yourselves; it is the gift of God, 9 not of works, lest anyone should boast. Ephesians 2:8-9
Romans 3 about grace and faith, you know you can have no faith if you have no grace first.
Without that grace being given to you, you will never have faith, believe or be saved.
And we are justified first by grace, just as Titus describes. You cannot believe in Christ without God's grace granting to you your belief, read John 6
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And He said, “Therefore I have said to you that no one can come to Me unless it has been granted to him by My Father.”
Grace, you have as it comes from God, having Grace, God also gives (grants) you faith.
God uses the means of faith as a sign of His grace that you He has saved.
21 But now the righteousness of God apart from the law is revealed, being witnessed by the Law and the Prophets, 22 even the righteousness of God, through faith in Jesus Christ, to all [
f]and on all who believe. For there is no difference; 23 for all have sinned and fall short of the glory of God, 24
being justified [g]freely by His grace through the redemption that is in Christ Jesus, 25 whom God set forth
as a [
h]propitiation by His blood, through faith, to demonstrate His righteousness, because in His forbearance God had passed over the sins that were previously committed, 26 to demonstrate at the present time His righteousness, that He might be just and the justifier of the one who has faith in Jesus.
Romans 4, nothing about speaking associated with being saved
People are saved, then they believe and then they speak. Speaking always comes after believing, and people who believe demonstrate that God has saved them. Of course, to fulfil all righteousness, those God saves will bear good fruit, and speaking here is good fruit.
2 Corinthians 4:13
And since we have the same spirit of faith, according to what is written, “I believed and therefore I spoke,” we also believe and therefore speak,
Grace comes first, faith after.
People who don't believe in grace justification believe in works as in you must say or do something to be saved.
People speak because of the grace God gave them, not the other way round as in God gives grace because of what they said.
They will do the works as God has given them the grace to do the works.
13 For the promise that he would be the heir of the world
was not to Abraham or to his seed through the law, but through the righteousness of faith. 14 For if those who are of the law
are heirs, faith is made void and the promise made of no effect, 15 because the law brings about wrath; for where there is no law
there is no transgression.
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Therefore it is of faith that it might be according to grace, so that the promise might be [
d]sure to all the seed, not only to those who are of the law, but also to those who are of the faith of Abraham, who is the father of us all 17 (as it is written, “I have made you a father of many nations”) in the presence of Him whom he believed—God, who gives life to the dead and calls those things which do not exist as though they did; 18 who, contrary to hope, in hope believed, so that he became the father of many nations, according to what was spoken, “So shall your descendants be.” 19 And not being weak in faith, he did not consider his own body, already dead (since he was about a hundred years old), and the deadness of Sarah’s womb. 20 He did not waver at the promise of God through unbelief, but was strengthened in faith, giving glory to God, 21 and being fully convinced that what He had promised He was also able to perform. 22 And therefore “it was accounted to him for righteousness.”
23 Now it was not written for his sake alone that it was imputed to him, 24 but also for us. It shall be imputed to us who believe in Him who raised up Jesus our Lord from the dead, 25 who was delivered up because of our offenses, and was raised because of our justification.