Christians are followers of Christ (he is the central character of our faith so it is important we understand who he is.
His full title is the Lord Jesus Christ, e.g. Ephesians 1:3.
Lord - applied in the Old Testament to God. This title is applied to Jesus in the N.T. and indicates his deity.
E.g. Psalm 97:5; Philippians 2:11; Luke 2:11 [See also Isaiah 45:22-24]
Jesus = Jehovah is salvation. Jesus = Saviour. Matthew 1:21
Christ = Messiah, anointed one. Daniel 9:25-26; Matthew 16:16
A summary of the Bible's teaching on the Lord Jesus is he has two natures, divine and human, which concur in one Person.
The O.T. title of LORD is applied to Jesus in the N.T.
e.g. Numbers 21:5-7; Isaiah 6:1-10; [Psalm 45:6-7; Jeremiah 23:5-6;1 Corinthians 10:9&21; John 12:37-41; Hebrews 1:8-9;1 Corinthians 1:30]
In Isaiah 9:6 clearly the Messiah is in view but addressed as God.
John 1:1; Titus 2:13 [See also 1 John 5:20; Romans 9:5; Philippians 2:6; Hebrews 1:1-3; Colossians 2:9]
•First and Last (eternity) - Isaiah 44:6; Revelation 1:17-18, 22:13
•Pre-existence - John 1:1
•Creator - John 1:3 [Look up the rest later: Malachi 3:6 / Hebrews 13:8;
Matthew 28:18; Mark 2:5-7; Acts 2:27 / Isaiah 43:14-15]
John 20:26-28 [Hebrews 1:6; Revelation 5:12; John 5:20-23]
When it comes to describing the deity of Christ, the creeds put it like this:
'Christ is consubstantial, of the same substance and essence of the Father, co-equal, co-eternal, begotten, not made.'
John 1:14; Hebrews 2:14
He differed in his humanity from us in that he was born of a virgin (Matthew 1:20-23). He was sinless (Hebrews 4:15). He was God the Son as well.
[Note: Jesus Christ was subordinate in his role as Saviour and mediator to his Father, 1 Corinthians 15:22-28]
The human problem of sin means we need divine Saviour to:
Man sinned, therefore the penalty had to be borne by a man.
Note: the formula worked out at the Council of Chalcedon AD451 is a good way of understanding the Biblical material:
The two natures concur (are together) in one person. They are not mixed together or changed by their relationship with each other, yet they are without division. Jesus Christ is one person, not two. When he acts, he acts as a single person.
Because Jesus Christ is who he is, he is a suitable and sufficient Saviour.
Hebrews 2:14-18, 7:23-28, 9:23-28
[Note there have been many false teachings concerning Christ seen in Church history and still present today, e.g. Arianism (which says that God created in his own image the only begotten son) ( J.W.'s hold this view. Many other '-isms' have also distorted the Bible's teaching concerning Christ.]