Ask yourself three questions:
1) Is it a duty or an office?
2) Is it a physical or spiritual ministry?
3) Is it a leadership, or a servant role?

DIAKONIA - the ministry, serving, the position or office [NOUN]
1248 diakonia (dee-ak-on-ee'-ah)
AV-ministry 16, ministration 6, ministering 3, misc 9; 34
1) service, ministering, esp. of those who execute the commands of others
2) of those who by the command of God proclaim and promote religion among men
2a) of the office of Moses
2b) of the office of the apostles and its administration
2c) of the office of prophets, evangelists, elders etc.
3) the ministration of those who render to others the offices of Christian affection esp. those who help meet need by either collecting or distributing of charities
4) the office of the deacon in the church
5) the service of those who prepare and present food

Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Luke 10:40 But Martha was cumbered about much serving <1248>, and came to him, and said, Lord, dost thou not care that my sister hath left me to serve alone? bid her therefore that she help me.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 1:17 For he was numbered with us, and had obtained part of this ministry <1248>.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 1:25 That he may take part of this ministry <1248> and apostleship, from which Judas by transgression fell, that he might go to his own place.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 6:1 And in those days, when the number of the disciples was multiplied, there arose a murmuring of the Grecians against the Hebrews, because their widows were neglected in the daily ministration <1248>.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 6:4 But we will give ourselves continually to prayer, and to the ministry <1248> of the word.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 11:29 Then the disciples, every man according to his ability, determined to send relief <1248> unto the brethren which dwelt in Judaea:
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 12:25 And Barnabas and Saul returned from Jerusalem, when they had fulfilled their ministry <1248>, and took with them John, whose surname was Mark.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 20:24 But none of these things move me, neither count I my life dear unto myself, so that I might finish my course with joy, and the ministry <1248>, which I have received of the Lord Jesus, to testify the gospel of the grace of God.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Acts 21:19 And when he had saluted them, he declared particularly what things God had wrought among the Gentiles by his ministry <1248>.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Romans 11:13 For I speak to you Gentiles, inasmuch as I am the apostle of the Gentiles, I magnify mine office <1248>:
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Romans 12:7 Or ministry <1248>, let us wait on our ministering <1248>: or he that teacheth, on teaching;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Romans 15:31 That I may be delivered from them that do not believe in Judaea; and that my service <1248> which I have for Jerusalem may be accepted of the saints;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	1 Corinthians 12:5 And there are differences of administrations <1248>, but the same Lord.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	1 Corinthians 16:15 I beseech you, brethren, (ye know the house of Stephanas, that it is the firstfruits of Achaia, and that they have addicted themselves to the ministry <1248> of the saints,)
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 3:7 But if the ministration <1248> of death, written and engraven in stones, was glorious, so that the children of Israel could not stedfastly behold the face of Moses for the glory of his countenance; which glory was to be done away:
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 3:8 How shall <1248> not the ministration <1248> of the spirit be rather glorious?
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 3:9 For if the ministration <1248> of condemnation be glory, much more doth the ministration <1248> of righteousness exceed in glory.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 4:1 Therefore seeing we have this ministry <1248>, as we have received mercy, we faint not;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 5:18 And all things are of God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry <1248> of reconciliation;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 6:3 Giving no offence in any thing, that the ministry <1248> be not blamed:
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 8:4 Praying us with much intreaty that we would receive the gift, and take upon us the fellowship of the ministering <1248> to the saints.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 9:1 For as touching the ministering <1248> to the saints, it is superfluous for me to write to you:
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 9:12 For the administration <1248> of this service not only supplieth the want of the saints, but is abundant also by many thanksgivings unto God;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 9:13 Whiles by the experiment of this ministration <1248> they glorify God for your professed subjection unto the gospel of Christ, and for your liberal distribution unto them, and unto all men;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Corinthians 11:8 I robbed other churches, taking wages of them, to do <1248> you service <1248>.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Ephesians 4:12 For the perfecting of the saints, for the work of the ministry <1248>, for the edifying of the body of Christ:
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Colossians 4:17 And say to Archippus, Take heed to the ministry <1248> which thou hast received in the Lord, that thou fulfil it.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	1 Timothy 1:12 And I thank Christ Jesus our Lord, who hath enabled me, for that he counted me faithful, putting me into the ministry <1248>;
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Timothy 4:5 But watch thou in all things, endure afflictions, do the work of an evangelist, make full proof of thy ministry <1248>.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	2 Timothy 4:11 Only Luke is with me. Take Mark, and bring him with thee: for he is profitable to me for the ministry <1248>.
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Hebrews 1:14 Are they not all ministering spirits, sent forth to minister <1248> for them who shall be heirs of salvation?
Duty? __ Office? __	Physical? __ Spiritual? __	Servant? __ Leader? __	Revelation 2:19 I know thy works, and charity, and service <1248>, and faith, and thy patience, and thy works; and the last to be more than the first.

"diakonos"      "diakoneo"      "diakonia"