Excerpts from the Didaché

§ 5.1 But the way of death is this. First of all, it is filled with evil and cursing, murders adulteries, expressions of lust, acts of sexual immorality, thefts, idolatries, acts of magic, robberies, false witnessing, acts of hypocrisy, acts of duplicity, deceit, pride, malice, stubbornness, greediness, abusive language, jealousy, arrogance, haughtiness, boastfulness.
5.2 Persecutors of the good, hating the truth, loving the lie, not knowing the reward of righteousness, not joining the good or [the] righteous judgment, not caring for the good but for the evil, from whom gentleness and patience [are] far removed, loving what is worthless, pursuing reward, not having mercy on the poor, not toiling for the downtrodden, not understanding the one who made them, murderers of children, corrupters of the creatures of God, those who ignore the poor, oppressors of the afflicted, defenders of the rich, lawless judges of the poor, [people] steeped in sin. Be delivered, children, from all such as these.

§ 7.1 And concerning baptism, baptize in this way: having reviewed all of these things, baptize in the name of the
Father, and of the Son, and of the Holy Spirit, in running water.
7.2 But if you do not have access to running water, baptize in other water. And if you are not able to baptize with cold water,  baptize with warm.

7.3 But if you possess neither, pour other water on the head three times, in the name of the Father, and of the Son, and of the Holy Spirit.
7.4 And before the baptism the baptizer should fast beforehand, and the one being baptized, and any others who are able. Call upon the one being baptized to fast beforehand for one or two days.

§ 8.1 Do not have your fasts with the hypocrites. For they fast on Mondays and Thursdays; but you should fast on

Wednesdays and Fridays.
8.2 Neither are you to pray as the hypocrites, but as the Lord commanded in his gospel. Pray in this way: Our Father who [is] in heaven, may your name be holy, may your kingdom come, may your will be done, as in heaven, so also upon earth; our daily bread give to us today, and forgive us our debt as also we forgive our debtors, and do not lead us into temptation but deliver us from the evil one, because yours is the power and the glory.
8.3 Pray in this way three times each day.

§ 9
.1 Now, concerning the Eucharist, prepare for it as follows:
9.2 First, concerning the cup: We give thanks to you, our Father, for the holy vine of David your son, which you made known to us through Jesus your son, glory to you.
9.3 Next, concerning the broken bread: We give thanks to you, our Father, for the life and knowledge

which you made known to us through Jesus your son, glory to you.
9.4 Just as this broken bread was being scattered over the mountains and being brought together it became one, likewise bring together your church from the ends of the earth into your kingdom, so that yours is the glory and the power through Jesus Christ.
9.5 But none shall eat or shall drink from your Eucharist but those baptized in the name of the Lord; for also concerning this the Lord has said, “Do not give what is holy to the dogs (Matthew 7:6).”

§ 14.1 And coming together on the Lord's day of the Lord, break bread and give thanks, confessing first your
sins so that your sacrifice may be pure.
14.2 And everyone having a quarrel with his fellow member, do not let them gather with you until they have reconciled so that your sacrifice may not be defiled.
14.3 For this is what was said by the Lord: “In every place and time, offer me a pure sacrifice because I am a great king,” says the Lord, “and my name [is] great among the nations (Malachias 1:11-14).”

§ 15.1 Therefore, appoint for yourselves overseers and deacons worthy of the Lord, men gentle and not
lovers of money and truthful and well-proven, for to you, for the ministry of the prophets and teachers.
15.2 Therefore you must not disregard them, for they are your honorable ones, along with the prophets and teachers.
15.3 And correct one another not in anger but in peace, as you find in the gospel. And anyone
committing a wrong against another, neither let him hear from you until he repents.
15.4 But your prayers and your charitable giving and all of your actions, do as follows: as you find in the gospel of our Lord.