The word "Christian" has no context by itself. Acts 11:26 tells us that it is the disciples who were called that in Antioch.
Disciple, on the other hand, has much more context.
The word "disciple (https://goo.gl/pQ8WNS
)" in the Greek indicates a learner who adopts thier teachings, concepts, and lifestyle.
There are several places that describe what being a disciple requires:Then Jesus said to His disciples, “If anyone wishes to come after Me, he must deny himself, and take up his cross and follow Me. For whoever wishes to save his life will lose it; but whoever loses his life for My sake will find it. For what will it profit a man if he gains the whole world and forfeits his soul? Or what will a man give in exchange for his soul?"
- Matthew 16:24-26As they were going along the road, someone said to Him, “I will follow You wherever You go.” And Jesus said to him, “The foxes have holes and the birds of the air have nests, but the Son of Man has nowhere to lay His head.” And He said to another, “Follow Me.” But he said, “Lord, permit me first to go and bury my father.” But He said to him, “Allow the dead to bury their own dead; but as for you, go and proclaim everywhere the kingdom of God.” Another also said, “I will follow You, Lord; but first permit me to say good-bye to those at home.” But Jesus said to him, “No one, after putting his hand to the plow and looking back, is fit for the kingdom of God.”
- Luke 9:57-62Now large crowds were going along with Him; and He turned and said to them, “If anyone comes to Me, and does not hate his own father and mother and wife and children and brothers and sisters, yes, and even his own life, he cannot be My disciple. Whoever does not carry his own cross and come after Me cannot be My disciple. For which one of you, when he wants to build a tower, does not first sit down and calculate the cost to see if he has enough to complete it? Otherwise, when he has laid a foundation and is not able to finish, all who observe it begin to ridicule him, saying, ‘This man began to build and was not able to finish.’ Or what king, when he sets out to meet another king in battle, will not first sit down and consider whether he is strong enough with ten thousand men to encounter the one coming against him with twenty thousand? Or else, while the other is still far away, he sends a delegation and asks for terms of peace. So then, none of you can be My disciple who does not give up all his own possessions."
- Luke 14:25-33
Therefore, being a disciple of Jesus is the most challenging, the most important, and the most consuming undertaking than can be considered. It means that you no longer belong to yourself. It means that you no longer live for yourself. It means that you die to yourself, and live for His concerns.I have been crucified with Christ; and it is no longer I who live, but Christ lives in me; and the life which I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself up for me.
- Galatians 2:20
See also: https://goo.gl/nOykfh