The plan of this study is simple. We will look at a large number of sins, one by one, alphabetically. We will define the sin, describe it, and comment on it, along with noticing Scripture references on the particular entry. Some illustrations will be offered along with the description.
We all know how important it is that a person have a sense of responsibility and dependability in his daily life and especially in his relationships with other people. The word responsible has several shades of meaning: Liable to be required to give account, as of ones actions. . . . Involving personal accountability or ability to act without guidance or superior authority. . . . Able to make moral or rational decisions and therefore answerable for ones behavior. . . . Trustworthy or dependable; reliable. Obviously, irresponsible means the very opposite: Not responsible; unreliable or untrustworthy.
The unreliable, even when they do not promise to do anything, are always irresponsible. They let God and people wait. They disappoint them by not doing what they are told to do and are not very concerned about the trouble they have caused. Such irresponsible attitudes can often form a chain of difficulties at work and can cause great loss of goods or money.
Irresponsible people cost their fellow men much time and energy and make life difficult for them. They are not interested in how much trouble they cause others. Yet with this attitude they sin against love and this is a serious sin. It separates us from God and His love (1 John 4:8), here on earth and even more so in eternity, where the irresponsible, who thought this personality train was harmless and perhaps excused it by saying it was due to their congeniality, will be greatly astonished. Because this sin will have serious consequences in eternity, the first thing we have to do is to break with it, and not try to justify it.
Although this is another long quotation, there are helpful admonishments to us here:
The deepest fault of the unreliable is that they do not live in the sight of God. They usually make their first mistake by not taking an obligation, a promise, or a commission seriously. They only listen with one ear, because they do not do their work for God and in His presence. They are not particularly interested in doing their work as well as possible in order to please Jesus.
If we do not want to find that all our activities are in vain and do not want to come under Gods judgment, we have to begin to listen carefully when people tell us things, as though we were hearing a message directly from God, which is a matter of life and death, so that we do not miss a single word. If we tend to forget easily, we should begin to take requests, admonitions and orders seriously, by taking notes. We must do so in the knowledge that we are then taking God seriously, who has given us this task and is seeking a faithful steward. We must immediately do what we are told and not put anything off.
Paul says that an overseer, then, must be above reproach (1 Timothy 3:2; cf. Titus 1:6). If a person acts in an irresponsible way, he will not be above reproach for others will not be able to trust his judgment or actions. Paul says that the unsaved Gentiles are untrustworthya sin that is worthy of death (Romans 1:31-32). This term, asunthetos, translated untrustworthy, means not keeping covenant. It means faithless, literally covenant-breaking or undutiful. Jesus says, Be faithful until death, and I will give you the crown of life (Revelation 2:10), thus unfaithfulness will keep one from being rewarded. Paul says that we are stewards of the Lord, and it is required of stewards that one be found trustworthy (1 Corinthians 4:2).
Are we trustworthy in our duties to the Lord? Christ also said, He who is faithful in a very little thing is faithful also in much; and he who is unrighteous in a very little thing is unrighteous also in much (Luke 16:10). We are called to be faithful in all thingslarge and smallso that God will accept us as trustworthy in His kingdom. We are untrustworthy when people cant trust our words, our commitments, our lifestyle, and our behavior. We are unfaithful when we dont faithfully carry out what God has given to us. A husband is untrustworthy when his wife cant place confidence in him when he is away from the home and out of her eyesight. A wife is untrustworthy when she wastes her time during the day, watching soap operas, and fails to be faithful with her homemaking responsibilities. Untrustworthiness breaks down relationships and breaks our fellowship with God.
 The American Heritage College Dictionary.
 Schlink, You Will Never be the Same, p. 179.
 Ibid., pp. 179-180.
 NASB Exhaustive Concordance, lexicon.
 Bauer, Arndt, Gingrich, Danker, A Greek-English Lexicon of the New Testament.