Saul made havoc of the Church - The word ελυμαινετο, from λυμαινω, to destroy, devastate, ravage, signifies the act of ferocious animals, such as bears, wolves, and the like, in seeking and devouring their prey. This shows with what persevering rancour this man pursued the harmless Christians; and thus we see in him what bigotry and false zeal are capable of performing.

Entering into every house - For, however it might be to others, a Christian man's house was not his castle.

Haling men and women - Neither sparing age nor sex in the professors of Christianity. The word συρων signifies dragging them before the magistrates, or dragging them to justice.

Committed them to prison - For, as the Romans alone had the power of life and death, the Sanhedrin, by whom Saul was employed, Acts 26:10, could do no more than arrest and imprison, in order to inflict any punishment short of death. It is true, St. Paul himself says that some of them were put to death, see Acts 26:10; but this was either done by Roman authority, or by what was called the judgment of zeal, i.e. when the mob took the execution of the laws into their own hands, and massacred those whom they pretended to be blasphemers of God: for these sanctified their murderous outrage under the specious name of zeal for God's glory, and quoted the ensample of Phineas as a precedent. Such persons as these formed a sect among the Jews; and are known in ecclesiastical history by the appellation of Zealots or Sicarii.

Acts 7:58 And cast him out of the city, and stoned him: and the witnesses laid down their clothes at a young man's feet, whose name was Saul.

Acts 9:1-13,21 And Saul, yet breathing out threatenings and slaughter against the disciples of the Lord, went to the high priest...

Acts 22:3,4 I am truly a man which am a Jew, born in Tarsus, a city in Cilicia, yet brought up in this city at the feet of Gamaliel...

Acts 26:9-11 I truly thought with myself, that I ought to do many things contrary to the name of Jesus of Nazareth...

1 Corinthians 15:9 For I am the least of the apostles, that am not meet to be called an apostle, because I persecuted the church of God.

Galatians 1:13 For you have heard of my conversation in time past in the Jews' religion, how that beyond measure I persecuted the church of God...

Philippians 3:6 Concerning zeal, persecuting the church; touching the righteousness which is in the law, blameless.

1 Timothy 1:13 Who was before a blasphemer, and a persecutor, and injurious: but I obtained mercy, because I did it ignorantly in unbelief.

A Meeting in the Desert
'And the angel of the Lord spake unto Philip, saying, Arise, and go toward the south unto the way that goeth down from Jerusalem unto Gaza, which is desert. 27. And he arose and went: and, behold, a man of Ethiopia, an eunuch of great authority under Candace queen of the Ethiopians, who had the charge of all her treasure, and had come to Jerusalem for to worship, 28. Was returning, and sitting in his chariot, read Esaias the prophet. 29. Then the Spirit said unto Philip, Go near, and join thyself …
Alexander Maclaren—Expositions of Holy Scripture: The Acts

Whether the Imposition of the Priest's Hands is Necessary for this Sacrament?
Objection 1: It would seem that the imposition of the priest's hands is necessary for this sacrament. For it is written (Mk. 16:18): "They shall lay hands upon the sick, and they shall recover." Now sinners are sick spiritually, and obtain recovery through this sacrament. Therefore an imposition of hands should be made in this sacrament. Objection 2: Further, in this sacrament man regains the Holy Ghost Whom he had lost, wherefore it is said in the person of the penitent (Ps. 1:14): "Restore unto …
Saint Thomas Aquinas—Summa Theologica

Whether Penance is a Sacrament?
Objection 1: It would seem that Penance is not a sacrament. For Gregory [*Cf. Isidore, Etym. vi, ch. 19] says: "The sacraments are Baptism, Chrism, and the Body and Blood of Christ; which are called sacraments because under the veil of corporeal things the Divine power works out salvation in a hidden manner." But this does not happen in Penance, because therein corporeal things are not employed that, under them, the power of God may work our salvation. Therefore Penance is not a sacrament. Objection …
Saint Thomas Aquinas—Summa Theologica