The Greek preposition *eis* (G1519) in Strong's Concordance is a primary preposition meaning "to" or "into," indicating a point reached or entered. Metaphorically, it signifies a state or condition into which one comes, often after verbs of motion or duration. In the context of baptism, to baptize into someone or into the name of someone implies taking on the obligations of a disciple or being identified with the character and purposes of that person. This usage is significant when considering Jesus Christ as the Author and Finisher of our faith, as seen in Hebrews 12:2, where we are called to look unto Him with endurance, entering into a state of focused devotion and alignment with His purpose. Similarly, in John 5:24, Jesus declares that whoever hears His word and believes in Him who sent Him has everlasting life and passes from death into life, reflecting a transformative movement into a new condition through faith in Him.

The Greek preposition eis in Matthew 28:19 is poorly translated "in" the name of the Father, Son, and Holy Spirit. It means "into," and there is a significant difference between "in" and "into." Greek has a separate preposition, en, for "in," and Matthew is careful in his gospel to keep the two distinct, using eis when Jesus said "into." The preposition strongly suggests coming into a relationship with, and coming under the Lordship of, the one named. Baptism into God's name therefore places a person under God's authority and in relationship with Him. Because God's name encapsulates His whole nature and character, being baptized into it immerses the believer in everything God is, not merely in His Family. It begins the process of sharing His very nature and character, even if only in baby steps at first. It is also the beginning of the closest relationship possible with God, a oneness in which the believer is included in Him as if one with Him. This ties directly to Jesus' prayer in John 17 that His followers be kept in the Father's name and become one as the Father and Son are one.

The Greek word *eis* (G1519), translated as "in," carries the meaning of "into" or "put inside of." This term is used in the context of baptism, illustrating the concept of being baptized into water, into the church by means of the Holy Spirit, and into the name of God. This signifies a deep connection and incorporation, as His name becomes ours through spiritual begettal or adoption, marking us as part of His spiritual family. Our responsibility, therefore, is to uphold and honor that name through our words, attitudes, and deeds, reflecting the quality of our personal witness as bearers of His name.