• The Third Person of the Trinity

    Ephesians 4:30

    That the Holy Spirit who dwells within us is God Himself points to the awesome privilege we have as the people of God, but it also points to a solemn responsibility. Although we are forgiven in Christ, the fact that ...Read More

  • The Life-Giving Spirit

    Romans 8:10-11

    Today’s passage is a good reminder that while our justification in Christ guarantees our salvation, God’s work of salvation will not be completed in us until we enjoy resurrected life in the new heaven and earth. Our Creator ...Read More

  • Loving God by Loving Christ

    Matthew 10:37–39

    Adherents of other religions may do many good deeds in the name of God. They may even think that they are praying to Him when they beseech the Creator. But in doing all these things, they are really committing idolatry ...Read More

  • God the Holy Spirit

    Genesis 1:1–2

    We do not totally understand what it means for the Father to be unbegotten, the Son to be begotten, and the Spirit to proceed. As Augustine once said, we use these terms not because we can define them fully but ...Read More

  • The Gift of the Spirit

    John 14:16–17a

    Christ has ascended to heaven and has poured out the Holy Spirit to equip us for ministry, pray for us, and convince us of the truth of God’s Word. This work is necessary for us, and without the Spirit ...Read More

  • A Perfect, Eternal Union

    Colossians 2:9

    Jesus is not a split personality. His two natures are united so perfectly that He can do things that only human beings do and things that only God does without changing the character of His divine nature or His human ...Read More

  • Augustine on Faith and Reason Part I

    John 17:17

    Whenever human beings come to a knowledge of the truth, it is because the Lord has illumined His revelation. Even impenitent sinners sometimes submit to His natural revelation, but they do not do so consistently. This explains why even the ...Read More

  • Arianism

    John 1:1–18

    Arius’ teaching — Arianism — is alive today in cults such as the Jehovah’s Witnesses. It may also be held unwittingly by Christians who have not received good teaching and believe, implicitly, that the Father is a “higher” God than the ...Read More

  • Modalistic Monarchianism

    John 17:1–5

    Today’s study describes a heresy known as either modalistic monarchianism or modalism. It is alive and well today in some varieties of Pentecostalism. Analogies that compare God to water (vapor, liquid, and ice) are also essentially modalistic, even though ...Read More

  • Three Distinct Persons

    Matthew 3:13–17

    John Calvin says, “[The] Father and Son and Spirit are one God, yet the Son is not the Father, nor the Spirit the Son, but … they are differentiated by a peculiar quality” (Institutes 1.13.5). The Father is God ...Read More

  • Three Essential Articles

    1 Peter 1:2

    In John 8:24, Jesus tells us that unless we believe He is God, we will die in our sins. But we can only understand the deity of the Son of God rightly if we understand that He, like the ...Read More

  • Building Together

    Ephesians 2:22

    God is building us into His holy temple, but that does not mean we lack a role in the construction process. Unlike regeneration, sanctification is a cooperative work between the Holy Spirit and us (Phil. 2:12–13). Because of ...Read More

  • Trinitarian Salvation

    Ephesians 2:18

    Adherents of other religions confess belief in one God, but orthodox Christianity alone affirms the existence of one God who exists eternally as three persons who all share the same essence. The love shared between the three persons of the ...Read More

  • In the Fullness of Time

    Ephesians 1:10

    On the last day, God’s perfect plan will be fulfilled, and throughout the universe, all creatures great and small will honor Christ. Our task as we anticipate this final day is twofold. First, we must live as He has ...Read More

  • Defining Our Relationship

    Reflect on the mysterious union of Christ and the church as illustrated by the marriage relationship.Read More