Salvation is free but the cost of following Jesus Christ is so high that very few people will follow Jesus and very few people will be saved.
It is not just a matter of believing in Jesus Christ, it is a matter of following and obeying Him because we believe in Him. It is a matter of living up to His requirements.
I read the words of Jesus from Luke 14:25 "Now large crowds were going along with Him; and He turned and said to them, 26 “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. 27 Whoever does not carry his own cross and come after Me cannot be My disciple. 28 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? 29 Otherwise, when he has laid a foundation and is not able to finish, all who observe it begin to ridicule him, 30 saying, ‘This man began to build and was not able to finish.’ 31 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? 32 Or else, while the other is still far away, he sends a delegation and asks for terms of peace. 33 So then, none of you can be My disciple who does not give up all his own possessions."
That is the cost of salvation. That is the cost of following Jesus Christ. We have to be willing to give up everything to follow Jesus, to obey Him. we have to be faithful to Him until the very end. Very few people are willing to do that.
Jesus invites everybody to follow Him. He offers salvation to all people who will come after Him, who will deny themselves and become His disciple, follow Him until the very end.
The cost of salvation is discipleship. It is to follow Jesus Christ and to endure with Him until the very end.
Many people will be disappointed when they die and they learn that they did not have salvation , because they never became disciples of Jesus Christ. They were not willing to pay the cost.
Are we willing to pay the cost? Are we willing to endure with Jesus Christ until the end? We have to count the cost of following Jesus Christ and we have to endure with Him until the very end to have eternal life.
May Jesus bless you.