Dear MB,
I'm not sure what else to do brother but to simply point out again what I believe the passage in 2 Timothy 2 is saying.
Perhaps my choice of words was not the best.
I'll put it another way.
First, it is a given that God is the only one who can be called "good".
There is a Scripture passage however that states a certain man was a "good" man (Barnabas) with a reason following:
Acts 11:24 For he was a good man, and full of the Holy Ghost and of faith: and much people was added unto the Lord.
He was indwelt by the Holy Ghost who controlled him.
When one is controlled by the Spirit of God, walking in the Spirit and led of the Spirit then the fruit of the Spirit normally manifests itself in that person's life:
Galatians 5:22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,
23 Meekness, temperance: against such there is no law.
So when I say "spirituality" then this is what I mean from the Scriptures, one who is controlled by the Spirit of God with the fruit of the Spirit evident.
OK, notice again Paul's admonishment to the "servant of the Lord":
2 Timothy 2
23 But foolish and unlearned questions avoid, knowing that they do gender strifes.
24 And the servant of the Lord must not strive; but be gentle unto all men, apt to teach, patient,
25 In meekness instructing those that oppose themselves; if God peradventure will give them repentance to the acknowledging of the truth;
26 And that they may recover themselves out of the snare of the devil, who are taken captive by him at his will.
These qualities are evidence of the fruit of the Spirit and they directly affect the character of the individual doing the instructing.
They are required qualities, also this passage states: the servant of the Lord must not strive.
Paul also recoginzing that a person should be "spiritual" in order to do certain works of the Lord:
Galatians 6:1 Brethren, 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.
Why then do we strive? Because there is another controlling entity; the flesh:
Galatians 5
16 This I say then, Walk in the Spirit, and ye shall not fulfil the lust of the flesh.
17 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.
18 But if ye be led of the Spirit, ye are not under the law.
19 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,
Paul says "YE" in verse 16 (Christians). It is possible therefore for a Christian to fulfil the lust of the flesh or Paul would not be telling us how to avoid it.
Notice some of the works of the flesh: variance, emulations, wrath, strife, The very ones which are prevalent in the church today.
So, the servant of the Lord must avoid strife by being filled with the Spirit and demonstrating the fruit of the Spirit, evidenced by using gentleness and meekness when we deal with those who have gone astray.
No one can fake the fruit of the Spirit. It is obvious to all who is walking in the Spirit and who is not by their character and demeanor.
Further we are given this admonishment:
Galatians 5
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.
26 Let us not be desirous of vain glory, provoking one another, envying one another.
Being human, even as Christians we all fail to one degree or another in this endeavor. But when we fall/fail/sin, we should acknowledge the failure get up and put off those things which are behind while looking unto Jesus the author and finisher of our faith for maturity.
How do we "crucify" or "mortify" the flesh and its evil deeds of malice, guile, etc?
Actually it is normal growth process by the affect of the Word upon our human soul/spirit.
1 Peter 2:1 Wherefore laying aside all malice, and all guile, and hypocrisies, and envies, and all evil speakings,
2 As newborn babes, desire the sincere milk of the word, that ye may grow thereby:
However, we very often stand in the way, neglect the Word and/or do not yield to the Spirit.
We must recognize that as babes in Christ we still want to live our own life our own way rather than yield ourselves to the will of God:
Romans 12:1 I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service.
2 And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.
And by beholding the glory of the Lord:
2 Corinthians 3
17 Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.
18 But we all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the Lord.
There are other passages but these are just a few that show us how to overcome the flesh through the Spirit by whom we are indwelt.
Bless you brother, I hope I have sufficiently explained the words I chose.
HankD