We must avoid sin.
Hebrews 10:26

For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins.

"Earning" forgiveness.
James 5:20
Let him know, that he which converteth the sinner from the error of his way shall save a soul from death, and shall hide a multitude of sins.

We must do the will of God.
Luke 6:46

And why call ye me, "Lord, Lord," and do not the things which I say?

Matthew 7:21
Not every one that saith unto me, "Lord, Lord," shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.

Matthew 19:16-21

And, behold, one came and said unto him, "Good Master, what good thing shall I do, that I may have eternal life?" And he said unto him, "Why callest thou me good? there is none good but one, that is, God: but if thou wilt enter into life, keep the commandments." He saith unto him, "Which?" Jesus said, "thou shalt do no murder, Thou shalt not commit adultery, Thou shalt not steal, Thou shalt not bear false witness, Honour thy father and thy mother: and, Thou shalt love thy neighbour as thyself." The young man saith unto him, "All these things have I kept from my youth up: what lack I yet?" Jesus said unto him, "If thou wilt be perfect, go and sell that thou hast, and give to the poor, and thou shalt have treasure in heaven: and come and follow me."

1 Timothy 5:8

But if any provide not for his own, and specially for those of his own house, he hath denied the faith, and is worse than an infidel.

Hebrews 12:14

Follow peace with all men, and holiness, without which no man shall see the Lord:

We must strive to win salvation.
1 Corinthians 9:24-27

Know ye not that they which run in a race run all, but one receiveth the prize? So run, that ye may obtain. And every man that striveth for the mastery is temperate in all things. Now they do it to obtain a corruptible crown; but we an incorruptible. I therefore so run, not as uncertainly; so fight I, not as one that beateth the air: but I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway.

Luke 13:24

Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.

Works have merit.
Philippians 2:12
Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling.

2 Corinthians 5:10

For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done, whether it be good or bad.

Rom 2:5-10,13

But after thy hardness and impenitent heart treasurest up unto thyself wrath against the day of wrath and revelation of the righteous judgment of God; who will render to every man according to his deeds: To them who by patient continuance in well doing seek for glory and honour and immortality, eternal life: But unto them that are contentious, and do not obey the truth, but obey unrighteousness, indignation and wrath, Tribulation and anguish, upon every soul of man that doeth evil, of the Jew first, and also of the Gentile; But glory, honour, and peace, to every man that worketh good, to the Jew first, and also to the Gentile: (For not the hearers of the law are just before God, but the doers of the law shall be justified).

Rom 3:31

Do we then make void the law through faith? God forbid: yea, we establish the law.

Matthew 25:32-46

And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats: And he shall set the sheep on his right hand, but the goats on the left. Then shall the King say unto them on his right hand, "Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world: for I was an hungred, and ye gave me meat: I was thirsty, and ye gave me drink: I was a stranger, and ye took me in: naked, and ye clothed me: I was sick, and ye visited me: I was in prison, and ye came unto me." Then shall the righteous answer him, saying, "Lord, when saw we thee an hungred, and fed thee? or thirsty, and gave thee drink? When saw we thee a stranger, and took thee in? or naked, and clothed thee? Or when saw we thee sick, or in prison, and came unto thee?" And the King shall answer and say unto them, "Verily I say unto you, inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me." Then shall he say also unto them on the left hand, "Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels: for I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink: I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not." Then shall they also answer him, saying, "Lord, when saw we thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee?" Then shall he answer them, saying, "Verily I say unto you, inasmuch as ye did it not to one of the least of these, ye did it not to me." And these shall go away into everlasting punishment: but the righteous into life eternal.

Galatians 6:6-10

Let him that is taught in the word communicate unto him that teacheth in all good things. Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap. For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life everlasting. And let us not be weary in well doing: for in due season we shall reap, if we faint not. As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.

1 Timothy 6:17-19

Charge them that are rich in this world, that they be not highminded, nor trust in uncertain riches, but in the living God, who giveth us richly all things to enjoy; That they do good, that they be rich in good works, ready to distribute, willing to communicate; Laying up in store for themselves a good foundation against the time to come, that they may lay hold on eternal life.

Revelations 22:12

And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be.

We must keep the commandments.
1 John 2:3-4

And hereby we do know that we know him, if we keep his commandments. He that saith, "I know him," and keepeth not his commandments, is a liar, and the truth is not in him.

1 John 3:24

And he that keepeth his commandments dwelleth in him, and he in him. And hereby we know that he abideth in us, by the Spirit which he hath given us.

1 John 5:3

For this is the love of God, that we keep his commandments: and his commandments are not grievous.