The Great Commission given by Jesus to his disciples describes how to make a disciple(Christian) and give the steps a Christian much follow to do that.  Below are those steps:

Hear:

Romans 10:14-17, Matthew 7:24-27, 17:5, John 8:32, 20:30-31; Acts 2:37, 4:4, 8:35, 19:5;

Believe:

Mark 16:16; John 3:16-18, 36, 8:24, 11:25-26, 14:1, 17:20-21, 20:30-31, Acts 8:34-38, 10; 18:8; Romans 1:15-16, 10:9-14; Hebrews 11:6;

Confess:

Matthew 10:32-33; Luke 12:8; Romans 10:10; Philippians 2:11;

Repent:

Luke 13:3, 5; 24:47-49; Acts 2:38, 17:30-31 26:19-20; 2 Corinthians 7:10, 2 Peter 3:9

Be Baptized for the forgiveness of your sins:

Matthew 28:19-20; Mark 16:16; Acts 2:38; 8:38, 10:47, 22:16; Romans 6:3-5; Galatians 3:28; Ephesians 4:5; Colossians 2:12-13; 1 Peter 3:21;

Continue Faithfully until death:

Matthew 6:33;  Colossians 1:23;  2 Timothy 2:1-2, 3:14-17;  Hebrews 10:23-25, 12:1-2, 13:7-9;  2 Peter 1:1-11;  Revelation 2:10