God commended King Josiah for his zeal and impartiality in completing the reformation of religion (1 Kings 23:25). This is a rule for all princes and magistrates how they should reform.

Jus Divinum Regiminis Ecclesiastici, 76.

In addition to its work in unveiling the sin of the human heart, the law in the New Testament continues to instruct God’s people in their growth in holiness. As considered in the previous chapter, conformity to God’s law continues to produce in God’s people a holiness analogous to God’s. When God’s people live out a life of both external and internal obedience to His law, they “shall be perfect,” just as their Father in heaven is perfect (Matt. 5:48). In this dim reflection of God’s holiness, His people will win praise to His name from others (v. 16). Given this capacity of the law to instruct God’s people in righteousness, it is not surprising that the New Testament authors are comfortable citing the Decalogue and assuming that it still should guide the lives of God’s people (e.g., Eph. 6:1–4).

Stephen G. Myers, God To Us: Covenant Theology in Scripture, 311.

The work of the Triune God is obvious at every important point of history: creation, incarnation, resurrection, and also Pentecost. Exalted by the Father (v. 33), Christ poured out His Spirit (v. 33), and the Spirit testified of Christ (v. 31) while the Lord added to the church (v. 47). Blessed be the triune God (Eph. 1:3).

Thoughts for Personal/Family Worship: Acts 2 (Reformation Heritage KJV Study Bible).