We have to do works of the Spirit or else we are disobedient,and to obey is better than sacrifice.
When we are saved then we have to do what the Spirit wants us to do,or else we are disobedient to God,and against His kingdom,and ways.
Rev 2:4 Nevertheless I have somewhat against thee, because thou hast left thy first love.
Rev 2:5 Remember therefore from whence thou art fallen, and repent, and do the first works; or else I will come unto thee quickly, and will remove thy candlestick out of his place, except thou repent.
Rev 3:2 Be watchful, and strengthen the things which remain, that are ready to die: for I have not found thy works perfect before God.
Rev 3:3 Remember therefore how thou hast received and heard, and hold fast, and repent. If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.
If they say works do not save,and we will do works because we have the Spirit,then how did these people lack works,and Jesus was concerned that their works were not right before God,and told them to repent,or He would go against them.
Jesus said they were fallen,and to repent,so they were saved for they have fallen,and repent meaning that they can still be right with Jesus if they repent,but they were not right with Jesus at the time they lacked works.
To Jesus works are important,and have a bearing on a person's relationship with Him.
Php 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.
Works of the Spirit,being obedient to God keeps us saved,which it is obvious that some can lack,as shown by the 2 Churches.
1Sa 15:22 And Samuel said, Hath the LORD as great delight in burnt offerings and sacrifices, as in obeying the voice of the LORD? Behold, to obey is better than sacrifice, and to hearken than the fat of rams.
1Sa 15:23 For rebellion is as the sin of witchcraft, and stubbornness is as iniquity and idolatry. Because thou hast rejected the word of the LORD, he hath also rejected thee from being king.
Mat 28:20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.
Rom 15:18 For I will not dare to speak of any of those things which Christ hath not wrought by me, to make the Gentiles obedient, by word and deed.
2Co 10:5 Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ;
2Co 10:6 And having in a readiness to revenge all disobedience, when your obedience is fulfilled.
Rom 11:20 Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear:
Rom 11:21 For if God spared not the natural branches, take heed lest he also spare not thee.
Rom 11:22 Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off.