Grace simply means that God is freely giving of the Holy Spirit to outfit Stephen to fulfill the work he is being led to perform. This isn’t his attribute apart from Christ or the Holy Spirit, but the Holy Spirit working through him in sanctification. The entire book of Acts is about the Holy Spirit leading the Church to fulfill the great commission. The Holy Spirit is the one who gets the credit in Acts. However, none of this happens without God’s free gift of his Son, or the Holy Spirit calling me to faith and sustaining me in the faith. The explanation of the Third Article of the Apostle’s Creed in the small catechism would help explain what we believe about the work of the Holy Spirit if that helps.
1995 Justification is the
most excellent work of God’s love made manifest in Christ Jesus and granted by the Holy Spirit. It is the opinion of St. Augustine that “the justification of the wicked is a greater work than the creation of heaven and earth,” because "heaven and earth will pass away but the salvation and justification of the elect . . . will not pass away."43 He holds also that the justification of sinners surpasses the creation of the angels in justice, in that it bears witness to a greater mercy.
1995 The Holy Spirit is the master of the interior life. By giving birth to the "inner man,"44 justification entails the
sanctification of his whole being:
Just as you once yielded your members to impurity and to greater and greater iniquity, so now yield your members to righteousness for sanctification. . . . But now that you have been set free from sin and have become slaves of God, the return you get is sanctification and its end, eternal life.
II. GRACE
1996 Our justification comes from the grace of God. Grace is
favor , the free and undeserved help that God gives us to respond to his call to become children of God, adoptive sons, partakers of the divine nature and of eternal life
Rom 8:14 For all who are led by the Spirit of God are sons of God.
15 For you did not receive the spirit of slavery to fall back into fear, but you have received the spirit of sonship. When we cry, “Abba! Father!”
16 it is the Spirit himself bearing witness with our spirit that we are children of God,
17 and if children, then heirs, heirs of God and fellow heirs with Christ, provided we suffer with him in order that we may also be glorified with him.
2 Pet 1 3 His divine power has granted to us all things that pertain to life and godliness, through the knowledge of him who called us to his own glory and excellence,
4 by which he has granted to us his precious and very great promises, that through these you may escape from the corruption that is in the world because of passion, and become partakers of the divine nature.
Led by the Holy Spirit, not passive passengers in the car so to speak. Partakers of the divine nature.
Peace and God Bless
Nicene