No not all who receive grace will be saved.
“Or do you think lightly of the riches of His kindness and restraint and patience, not knowing that the kindness of God leads you to repentance? But because of your stubbornness and unrepentant heart you are storing up wrath for yourself on the day of wrath and revelation of the righteous judgment of God, who WILL REPAY EACH PERSON ACCORDING TO HIS DEEDS: to those who by perseverance in doing good seek glory, honor, and immortality, He will give eternal life; but to those who are self-serving and do not obey the truth, but obey unrighteousness, He will give wrath and indignation.”
Romans 2:4-8 NASB2020
Despite God’s kindness leading them to repentance (His grace) they are storing up for themselves God’s wrath on judgement day. No one can come to repentance without receiving grace.
Jesus says this to His 11 faithful apostles who also received God’s grace.
““I am the true vine, and My Father is the vinedresser. Every branch in Me that does not bear fruit, He takes away; and every branch that bears fruit, He prunes it so that it may bear more fruit. You are already clean because of the word which I have spoken to you. Remain in Me, and I in you. Just as the branch cannot bear fruit of itself but must remain in the vine, so neither can you unless you remain in Me. I am the vine, you are the branches; the one who remains in Me, and I in him bears much fruit, for apart from Me you can do nothing. If anyone does not remain in Me, he is thrown away like a branch and dries up; and they gather them and throw them into the fire, and they are burned. If you remain in Me, and My words remain in you, ask whatever you wish, and it will be done for you.”
John 15:1-7 NASB2020
This is a clear indication that even His 11 faithful apostles were capable of failing to remain in Him and if they should fall away without repenting they would be cast away to wither and cast into the fire to be burned. Also in verse 2 the branches that are cut off for not bearing fruit were in Christ which would be impossible if they had not received God’s grace.
“And He began telling this parable: “A man had a fig tree which had been planted in his vineyard; and he came looking for fruit on it and did not find any. And he said to the vineyard-keeper, ‘Look! For three years I have come looking for fruit on this fig tree without finding any. Cut it down! Why does it even use up the ground?’ But he answered and said to him, ‘Sir, leave it alone for this year too, until I dig around it and put in fertilizer; and if it bears fruit next year, fine; but if not, cut it down.’ ”
Luke 13:6-9 NASB2020
Notice that even tho the tree will receive special attention (God’s grace) the outcome is still uncertain whether or not the tree will bear fruit or whether or not it will be cut down.
This next verse speaks for itself.
“You have been severed from Christ, you who are seeking to be justified by the Law; you have fallen from grace.”
Galatians 5:4 NASB2020
