I think this post is able to answer the question: What does it mean to "abide" in Christ. Search the passages and see if they be so.
It is He's grace that Leads us to repentance (Romans 2:4) which is regretting our sins and becoming obedient to the law statutes and commandments(1 John 3:4). Jesus is our salvation and He is saving those who believe in him from their sins (Matt 1:21), which is transgression of the law (1 john 3:4). When we receive Jesus Christ as our personal Saviour we do it solely upon belief by the answer towards God out of a good conscience (1 Peter 3:21). Does this mean we are no longer supposed to live a life in accordance with the righteous laws and judgments of God ? God forbid, but rather that we establish the law and walk in obedience to it (Romans 3:31). Now if we choose to be willfully ignorant of our Saviour and continue to live in transgression of He's will and divine instructions then we will loose our reward and we show ourself to be trampling the grace of God under our feet (Hebrews 10:26-29).
Consider those who followed Christ and did not choose to keep He's laws: (Matt 7:21-23).
Also consider the parable of the ten virgins.
Matthew 25:
The Parable of the Ten Virgins 1Then shall the kingdom of heaven be likened unto ten virgins, which took their lamps, and went forth to meet the bridegroom. 2And five of them were wise, and fivewere foolish. 3They that were foolish took their lamps, and took no oil with them: 4But the wise took oil in their vessels with their lamps. 5While the bridegroom tarried, they all slumbered and slept. 6And at midnight there was a cry made, Behold, the bridegroom cometh; go ye out to meet him. 7Then all those virgins arose, and trimmed their lamps. 8And the foolish said unto the wise, Give us of your oil; for our lamps are gone out. 9But the wise answered, saying, Not so; lest there be not enough for us and you: but go ye rather to them that sell, and buy for yourselves. 10And while they went to buy, the bridegroom came; and they that were ready went in with him to the marriage: and the door was shut. 11Afterward came also the other virgins, saying, Lord, Lord, open to us. 12But he answered and said, Verily I say unto you, I know you not. 13Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh.
Psalms 119:105 Thy word is a lamp unto my feet, and a light unto my path.
Psalms 19:7 The law of the LORD is perfect, converting the soul: the testimony of the LORD is sure, making wise the simple.
Proverbs 1:7 The fear of the LORD is the beginning of knowledge: but fools despise wisdom and instruction.
Proverbs 10:8 The wise in heart will receive commandments: but a prating fool shall fall.
Proverbs 6:23 For the commandment is a lamp; and the law is light; and reproofs of instruction are the way of life:
Proverbs 23:23 Buy the truth, and sell it not; also wisdom, and instruction, and understanding.
Psalms 119:142 Thy righteousness is an everlasting righteousness, and thy law is the truth.
Proverbs 21:20 There is treasure to be desired and oil in the dwelling of the wise;
but a foolish man spendeth it up.
Proverbs 29:3 Whoso loveth wisdom rejoiceth his father:
buthe that keepeth company with harlots spendeth his substance.
Matthew 7:21 “Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but the one who does the will of my Father who is in heaven.22On that day many will say to me, ‘Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many mighty works in your name?’23And then will I declare to them, ‘I never knew you; depart from me, you workers of lawlessness.’
Clearly those teaching we are only to rely upon Christs obedience are wrong and they are teaching a form of "hyper grace" doctrine which teaches people they don't have to strive for perfection by learning the commandments of the Torah by being obedient to the Words of Jesus Christ (Matt 5:48, Matt 19:21, Luke 6:40, Luke 8:14, John 17:23, Rom 12:2, 1 Corin 1:10, 1 Corin 2:6, 2 Corin 7:1, 2 Corin 13:9, 2 Corin 13:11, Eph 4:12-13, Phil 3:15, Col 1:28, Col 3:14, Col 4:12, 1 Thess 3:10, 2 Tim 3:17, Heb 6:1, Heb 10:14, Heb 12:23, Heb 13:21, James 1:4, James 1:25, James 2:22, James 3:2, 1 Peter 5:10, 1 John 2:5, 1 John 4:12, 1 John 4:17-18, Rev 2:3).
Search the passages and see if they be so.