Through the apostles and disciples whom He made so eloquent and so courageous that they intrepidly professed and preached Christ to be the Son of God, and the true Messiah. This doctrine He confirmed by astounding miracles, and sealed it by their blood which they shed in its defense The Holy Ghost still gives testimony of Christ through the Church, that is, the clergy, through whom He speaks, and who must, therefore, be listened to reverently. We must also give testimony of Christ and profess by our lives, by patience in crosses and afflictions that He is our Teacher, our Lord, and our God; for if we do not thus acknowledge Him in this world He will deny us before His Father in heaven. (Matt 10: 33)
Undoubtedly; for although they erroneously believed they were doing God a service, their ignorance and error were very sinful and deserving of punishment, because they could easily have known and been instructed in the truth.
That there is but one God, who has created and governs all things; that God is a just judge, who rewards the good and punishes the wicked; that there are in the Deity three persons, the Father, the Son, and the Holy Ghost; that the Son of God became man for love of us, taught us, and by His death on the cross redeemed us; that the Holy Ghost sanctifies us by His grace, without which we cannot become virtuous or be saved; that man's soul is immortal.
INSTRUCTION ON SCANDAL
These things have I spoken to you, that you may not be scandalized. (John 16:1)
By speaking, doing or omitting that which will be, to others an occasion, of sin: Scandal is given in different ways, for instance: if you dress improperly, speak improper words, or sing bad songs; by which you can see, that your neighbor will be tempted to think, desire or act wrongly; or what is worse, if you act sinfully, in the presence of, others, or bring bad books, books against good morals, or against the holy faith, among people; if you incite others to anger, cursing, and vengeance, or if you prevent them from attending church, the sermon, or catechetical instruction, etc. In all these things you become guilty of scandal, as well as of all the sins to which it gives rise.
By giving their children bad example; by excessive anger, cursing and swearing; by avarice, injustice and cheating; by discord and quarrels; by gluttony in eating and drinking; by extravagance and vanity in dress; by sneering at religion, good morals, etc.; by not keeping their children from evil company, but sometimes even bringing them into it; by not punishing and endeavoring to eradicate their children's vices. How much parents sin, through such scandals, cannot be expressed; at the Day of judgment their children will be their accusers!
In the same way as parents do to their children; by keeping them away from, or not urging them by their own example or command to attend church on Sundays and holy-days; by giving them meat on fast-days; by commanding them to do sinful things, such as stealing, injuring others, etc.
INSTRUCTION ON PREPARATION FOR PENTECOST
From the classic, Fr Goffine "The Church's Year"