The verb phylassō (to keep, keep from, guard) in the New Testament

(Translation from NRSV for the New Testament with a few modifications for a more literal meaning)

Matthew

19: 20The young man said to him, "I have kept (phylassō) all these; what do I still lack?"

Mark

10: 20He said to him, "Teacher, I have kept (phylassō) all these since my youth."

Luke

2: 8In that region there were shepherds living in the fields, keeping (phylassō) watch over their flock by night.
8: 29for Jesus had commanded the unclean spirit to come out of the man. (For many times it had seized him; he was kept (phylassō) under guard and bound with chains and shackles, but he would break the bonds and be driven by the demon into the wilds.)
11: 21When a strong man, fully armed, guards (phylassō) his castle, his property is safe.
11: 28But he said, "Blessed rather are those who hear the word of God and keep (phylassō) it!"
12: 15And he said to them, "Take care! Be on your guard (phylassō) against all kinds of greed; for one's life does not consist in the abundance of possessions."
18: 21He replied, "I have kept (phylassō) all these since my youth."

John

12: 25Those who love their life lose it, and those who hate their life in this world will keep (phylassō) it for eternal life.
12: 47I do not judge anyone who hears my words and does not keep (phylassō) them, for I came not to judge the world, but to save the world.
17: 12While I was with them, I protected them in your name that you have given me. I guarded (phylassō) them, and not one of them was lost except the one destined to be lost, so that the scripture might be fulfilled.

Acts

7: 53You are the ones that received the law as ordained by angels, and yet you have not kept (phylassō) it."
12: 4When he had seized him, he put him in prison and handed him over to four squads of soldiers to guard (phylassō) him, intending to bring him out to the people after the Passover.
16: 4As they went from town to town, they delivered to them to keep (phylassō) the decisions that had been reached by the apostles and elders who were in Jerusalem.
21: 24Join these men, go through the rite of purification with them, and pay for the shaving of their heads. Thus all will know that there is nothing in what they have been told about you, but that you yourself observe and guard (phylassō) the law.
21: 25But as for the Gentiles who have become believers, we have sent a letter with our judgment that they should keep (phylassō) from what has been sacrificed to idols and from blood and from what is strangled and from fornication."
22: 20And while the blood of your witness Stephen was shed, I myself was standing by, approving and keeping (phylassō) the coats of those who killed him.'
23: 35he said, "I will give you a hearing when your accusers arrive." Then he ordered that he be kept (phylassō) under guard in Herod's headquarters.
28: 16When we came into Rome, Paul was allowed to live by himself, with the soldier who was guarding (phylassō) him.

1 John

5: 21 Little children, keep (phylassō) yourselves from idols.

2 Thessalonians

3: 3But the Lord is faithful; he will strengthen you and guard (phylassō) you from the evil one.

Galatian

6: 13 Even the circumcised do not themselves keep (phylassō) the law, but they want you to be circumcised so that they may boast about your flesh.

Romans

2: 26So, if those who are uncircumcised keep (phylassō) the requirements of the law, will not their uncircumcision be regarded as circumcision?

1 Timothy

5: 21In the presence of God and of Christ Jesus and of the elect angels, I warn you to keep (phylassō) these instructions without prejudice, doing nothing on the basis of partiality.
6: 20Timothy, guard (phylassō) what has been entrusted to you. Avoid the profane chatter and contradictions of what is falsely called knowledge;

2 Timothy

1: 12and for this reason I suffer as I do. But I am not ashamed, for I know the one in whom I have put my trust, and I am sure that he is able to guard (phylassō) until that day what I have entrusted to him.
1: 14Guard (phylassō) the good treasure entrusted to you, with the help of the Holy Spirit living in us.
4: 15You also must keep (phylassō) yourself from him, for he strongly opposed our message.

2 Peter

2: 5and if he did not spare the ancient world, even though he kept (phylassō) Noah, a herald of righteousness, with seven others, when he brought a flood on a world of the ungodly;
3: 17You therefore, beloved, since you are forewarned, keep (phylassō) yourself from being carried away with the error of the lawless and lose your own stability.

Jude

1: 24Now to him who is able to keep (phylassō) you from falling, and to make you stand without blemish in the presence of his glory with rejoicing,