Irenaeus – Against Heresies: Book 5, Chap. 36 – On the renewal of creation at the resurrection and not its annihilation –

 For since there are real men, so must there also be a real establishment (plantationem), that they vanish not away among non-existent things, but progress among those which have an actual existence. For neither is the substance nor the essence of the creation annihilated (for faithful and true is He who has established it), but “the fashion of the world passeth away;” that is, those things among which transgression has occurred, since man has grown old in them. And therefore this [present] fashion has been formed temporary, God foreknowing all things; as I have pointed out in the preceding book, and have also shown, as far as was possible, the cause of the creation of this world of temporal things. But when this [present] fashion [of things] passes away, and man has been renewed, and flourishes in an incorruptible state, so as to preclude the possibility of becoming old, [then] there shall be the new heaven and the new earth, in which the new man shall remain [continually], always holding fresh converse with God. And since (or, that) these things shall ever continue without end, Isaiah declares, “For as the new heavens and the new earth which I do make, continue in my sight, saith the Lord, so shall your seed and your name remain.” And as the presbyters say, Then those who are deemed worthy of an abode in heaven shall go there, others shall enjoy the delights of paradise, and others shall possess the splendour of the city; for everywhere the Saviour shall be seen according as they who see Him shall be worthy.

Ireaneus – Fragments: Chap. 11 –

The business of the Christian is nothing else than to be ever preparing for death.

Irenaeus – Fragments: Chap. 52 – Irenaeus shows the reader how Scripture presents Jesus Christ as both God and man –

The sacred books acknowledge with regard to Christ, that as He is the Son of man, so is the same Being not a [mere] man; and as He is flesh, so is He also spirit, and the Word of God, and God. And as He was born of Mary in the last times, so did He also proceed from God as the First-begotten of every creature; and as He hungered, so did He satisfy [others]; and as He thirsted, so did He of old cause the Jews to drink, for the “Rock was Christ” Himself: thus does Jesus now give to His believing people power to drink spiritual waters, which spring up to life eternal. And as He was the son of David, so was He also the Lord of David. And as He was from Abraham, so did He also exist before Abraham. And as He was the servant of God, so is He the Son of God, and Lord of the universe. And as He was spit upon ignominiously, so also did He breathe the Holy Spirit into His disciples. And as He was saddened, so also did He give joy to His people. And as He was capable of being handled and touched, so again did He, in a non-apprehensible form, pass through the midst of those who sought to injure Him, and entered without impediment through closed doors. And as He slept, so did He also rule the sea, the winds, and the storms. And as He suffered, so also is He alive, and life-giving, and healing all our infirmity. And as He died, so is He also the Resurrection of the dead. He suffered shame on earth, while He is higher than all glory and praise in heaven; who, “though He was crucified through weakness, yet He liveth by divine power;” who “descended into the lower parts of the earth,” and who “ascended up above the heavens;” for whom a manger sufficed, yet who filled all things; who was dead, yet who liveth for ever and ever. Amen

Shepherd of Hermas – Book Two, Commandment Second: On Avoiding Evil Speaking –

 First, then, speak evil of no one, nor listen with pleasure to any one who speaks evil of another. But if you listen, you will partake of the sin of him who speaks evil, if you believe the slander which you hear; for believing it, you will also have something to say against your brother. Thus, then, will you be guilty of the sin of him who slanders. For slander is evil and an unsteady demon. It never abides in peace, but always remains in discord. Keep yourself from it, and you will always be at peace with all. Put on a holiness in which there is no wicked cause of offence, but all deeds that are equable and joyful.

Shepherd of Herman – Book Two, Commandment Seventh: On Fearing God, And Not Fearing the Devil –

“Fear,” said he, “the Lord, and keep His commandments. For if you keep the commandments of God, you will be powerful in every action, and every one of your actions will be incomparable. For, fearing the Lord, you will do all things well. This is the fear which you ought to have, that you may be saved. But fear not the devil; for, fearing the Lord, you will have dominion over the devil, for there is no power in him. But he in whom there is no power ought on no account to be an object of fear; but He in whom there is glorious power is truly to be feared. For every one that has power ought to be feared; but he who has not power is despised by all. Fear, therefore, the deeds of the devil, since they are wicked. For, fearing the Lord, you will not do these deeds, but will refrain from them. For fears are of two kinds: for if you do not wish to do that which is evil, fear the Lord, and you will not do it; but, again, if you wish to do that which is good, fear the Lord, and you will do it. Wherefore the fear of the Lord is strong, and great, and glorious. Fear, then, the Lord, and you will live to Him, and as many as fear Him and keep His commandments will live to God.” “Why,” said I, “sir, did you say in regard to those that keep His commandments, that they will live to God?” “Because,” says he, “all creation fears the Lord, but all creation does not keep His commandments. They only who fear the Lord and keep His commandments have life with God; but as to those who keep not His commandments, there is no life in them.”