Indeed, no man comes to the Father but by Christ. Many in the Christian world use this as a means, some even as an excuse to willfully sin, commit adultery, fornicate, lie, cheat, steal, etc. This is not what was meant for us. Surely the heavens must weep when God looks down and sees the pornography epidemic sweeping this nation and world, when He sees homes broken and families destroyed, when sex is used as means to instant gratification and abandonment.
Consider these references:
James 2:
14 What doth it profit, my brethren, though a man say he hath faith, and have not works? can faith save him?
15 If a brother or sister be naked, and destitute of daily blood,
16 And one of you say unto them, Depart in peace, be ye warmed and filled; notwithstanding ye give them not those things which are needful to the body; what doth it profit?
17 Even so faith, if it hath not works, is dead, being alone.
18 Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.
19 Thou believest that there is one God; thou doest well: the adevils also believe, and tremble.
20 But wilt thou know, O vain man, that faith without works is dead?
Philip. 2: 12
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.
Rev. 20: 12-13
12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.
Here's some more snippets that you can look up in their entirety that explain the LDS position.
2 Chr. 15: 7 Be ye strong . . . for your work shall be rewarded.
Ps. 28: 4 (Rev. 2: 23) Give them according to their deeds.
Ps. 62: 12 (Prov. 24: 12, 29; Rom. 2: 5-11) renderest to every man according to his work.
Eccl. 12: 14 God shall bring every work into judgment.
Jer. 17: 10 (Jer. 32: 19) to give every man according to his ways.
Micah 6: 8 do justly, and to love mercy, and to walk humbly.
Matt. 5: 6 they which do hunger and thirst after righteousness.
Matt. 5: 16 that they may see your good works, and glorify your Father.
Matt. 7: 12 whatsoever ye would that men should do to you, do ye even so to them.
Matt. 7: 16 Ye shall know them by their fruits.
Matt. 13: 23 received seed into the good ground . . . beareth fruit.
Matt. 16: 27 (1 Cor. 3: 8; Alma 9: 27-28; D&C 138: 59) shall reward every man according to his works.
Matt. 25: 40 as ye have done it unto one of the least of these . . . ye have done it unto me.
John 3: 21 he that doeth truth cometh to the light.
John 8: 39 If ye were Abraham’s children, ye would do the works of Abraham.
John 9: 4 I must work the works of him that sent me.
Acts 10: 35 he that . . . worketh righteousness, is accepted with him.
Rom. 2: 13 doers of the law shall be justified.
2 Cor. 5: 10 receive . . . according to that he hath done.
Gal. 6: 4 let every man prove his own work.
Gal. 6: 7 whatsoever a man soweth, that shall he also reap.
Eph. 2: 10 created in Christ Jesus unto good works.
Eph. 5: 9 fruit of the Spirit is in all goodness.
2 Tim. 3: 17 perfect, throughly furnished unto all good works.
Titus 3: 8 be careful to maintain good works.
Heb. 13: 21 Make you perfect in every good work to do his will.
James 1: 22 be ye doers of the word, and not hearers only.
James 1: 27 Pure religion . . . is this, To visit the fatherless.
James 2: 22 by works was faith made perfect.
James 2: 26 faith without works is dead.
James 4: 17 him that knoweth to do good, and doeth it not.
1 Pet. 1: 17 (Rev. 20: 12-13; 1 Ne. 15: 32; Mosiah 3: 24; Alma 33: 22; D&C 19: 3; D&C 76: 111; D&C 137: 9) Father . . . judgeth according to every man’s work.
1 Pet. 2: 12 your good works . . . glorify God.
2 Pet. 1: 5 add to your faith virtue.
1 Jn. 3: 18 let us not love in word . . . but in deed.
1 Jn. 3: 22 we receive of him, because we keep his commandments.
Rev. 22: 14 blessed are they that do his commandments.
We are the only Faith that believes that by God's grace we are forgiven even before the deeds if we simply accept God's love given through his son. Once that is done, by the very virtue of following his word and feeling his grace we do good works. We don't have to work to be worthy as other faiths do, that worthiness was already given to us, we just have to accept and keep it.
That is what makes True Christianity the one true faith, for a powerful God can do such and does make his followers play games to reach heaven.