I hear what you're saying but I see scriptures that talk about us being under the law of Christ and telling us to walk in a manner pleasing to God.
Paul said he was under the law of Christ.
1 Cor. 9:21 to those who are without law, as without law, though not being without the law of God but under the law of Christ, so that I might win those who are without law.
Here is another example of those who receive eternal life and destruction based on their deeds.
Matt. 25:32 All the nations will be gathered before Him; and He will separate them from one another, as the shepherd separates the sheep from the goats;...34 "Then the King will say to those on His right, 'Come, you who are blessed of My Father, inherit the kingdom prepared for you from the foundation of the world. 35 For I was hungry, and you gave Me something to eat; I was thirsty, and you gave Me something to drink; I was a stranger, and you invited Me in; 36 naked, and you clothed Me; I was sick, and you visited Me; I was in prison, and you came to Me.' 37 Then the righteous will answer Him, 'Lord, when did we see You hungry, and feed You, or thirsty, and give You something to drink? 38 And when did we see You a stranger, and invite You in, or naked, and clothe You? 39 When did we see You sick, or in prison, and come to You?' 40 The King will answer and say to them, 'Truly I say to you, to the extent that you did it to one of these brothers of Mine, even the least of them, you did it to Me.'
41 "Then He will also say to those on His left, 'Depart from Me, accursed ones, into the eternal fire which has been prepared for the devil and his angels; 42 for I was hungry, and you gave Me nothing to eat; I was thirsty, and you gave Me nothing to drink; 43 I was a stranger, and you did not invite Me in; naked, and you did not clothe Me; sick, and in prison, and you did not visit Me.' 44 Then they themselves also will answer, 'Lord, when did we see You hungry, or thirsty, or a stranger, or naked, or sick, or in prison, and did not take care of You?' 45 Then He will answer them, 'Truly I say to you, to the extent that you did not do it to one of the least of these, you did not do it to Me.' 46 These will go away into eternal punishment, but the righteous into eternal life."