The Doctrine of the Trinity

Ephesians 1:10 (ESV)
¹⁰ as a plan for the fullness of time, to unite all things in him, things in heaven and things on earth.

There are some doctrines in our Christian faith that are difficult to understand.  One of these is the doctrine of the Trinity.  How can one God be in essence three distinct persons?  Our limited minds cannot comprehend such depth.  Those who are looking to prove Christianity as a farce point to this doctrine.  After all, the word Trinity isn't even found in Scripture.  Though the term Trinity is not found in God's Word does not make the doctrine untrue for it summarizes the truth of God as three distinct Persons yet one God.

TableTalk explains this doctrine well.

We see in [Ephesians 1:3-6] that the Father planned redemption, having predestines His people to eternal life in Christ.  The Song of God carried out the work necessary to secure the salvation our Father planned and promised.  Jesus Christ, the God-man who is the perfect union of the second person of the Trinity with our humanity, shed His blood to bring us forgiveness and, due to His obedience, is exalted as King over all (Ephesians 1:7-12).  God the Holy Spirit seals the work of Christ to us, applying the benefits of salvation and marking us off as our Creator's special possession (Ephesians 1:13-14).  Each person works distinctively to bring salvation, yet harmony pervades the process, for the works of the Trinity are undivided - all of the persons of the Godhead work together to achieve the same end and never stand at cross purposes with one another.  God, therefore, is irreducibly three in person - Father, Son, and Spirit - and one in essence.

We can stand firm in our faith that God the Father, Son, and Spirit are one, working together for the will of the Father.  May His name be glorified by our lives as we grow and are sanctified in Him.