Galatians 5

As I read of those that believe that all you have to do in confess Jesus as your Savior to be saved, Paul teaches the Galatians -

"For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would."  (New Testament | Galatians 5:17)

Then explaining -

"Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,
20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
21 Envyings, murders, drunkenness, revellings, and such like..."  (New Testament | Galatians 5:19 - 21)

Including -

"Let us not be desirous of vain glory, provoking one another, envying one another."  (New Testament | Galatians 5:26)

And then adds the specific result -

"...of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God."  (New Testament | Galatians 5:21)

Obviously, to be saved one must repent, have a change of heart (reborn), keep His commandments, and receive the Holy Ghost for in contrast to the above lifestyles -

"...the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,
23 Meekness, temperance: against such there is no law.
24 And they that are Christ's have crucified the flesh with the affections and lusts.
25 If we live in the Spirit, let us also walk in the Spirit."  (New Testament | Galatians 5:22 - 25)

For -

if a man be overtaken in a fault, ye which are spiritual, restore such an one in the spirit of meekness; considering thyself, lest thou also be tempted.
2 Bear ye one another's burdens, and so fulfil the law of Christ.
3 For if a man think himself to be something, when he is nothing, he deceiveth himself.
4 But let every man prove his own work, and then shall he have rejoicing in himself alone, and not in another.
5 For every man shall bear his own burden.

(New Testament | Galatians 6:1 - 5)

"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.
9 And let us not be weary in well doing: for in due season we shall reap, if we faint not."  (New Testament | Galatians 6:8 - 9)

These requirements do not sound like all we have to do is confess Jesus.  We must endure faithfully to the end.