Each of us who answer His call has to learn how to do this. The Lord does give us an idea of how to do it, but it’s up to us to figure it out. It does take reading His Word and learning from it and this is a lifetime process. Some people think that going to church gives them the key to heaven or maybe reading the Bible gives them a special place in heaven. Those actions have no real bearing on your eternity although they do help you to be the person that you are supposed to be in Jesus Christ those actions do NOT save you!
Faith in Jesus and believing in His atonement for your life, your sins and all of the words and things which you have done or said in this life. The Holy Spirit comes to live in your heart and you become a new creation from that moment on. We become more like Him by turning away from our sinful lives and truly following Him daily. God called you to be His and it is His call on your life which allows you to be saved because He gives you the faith and the grace to become His child…but only if you answer that call by accepting it and moving toward Him and away from your old life.
But…what if I don’t want to give up my old life?
Then it is likely that you won’t accept Jesus’ call on your life! It is a sad position to be in from an eternal standpoint. If you have felt His touch in your heart and you know that you are a sinner and you need Jesus as your Savior, yet you love your sins and your “regular” life more than you feel the need of salvation…it is very possible that you will just walk away from Him. What would’ve happened to the church if the disciples had turn away from Jesus? There wouldn’t be a church today.
Could Jesus have found other disciples? Of course, He could have but it would’ve been very different from the ministry which He had with the original disciples. People are very different and shepherds or other disciples would have learned from Him in different ways from the 12 which He chose. Even His betrayer would’ve been different, but God knew which men would follow Him and the ones who did were the disciples which were needed.
God knows our hearts and our usefulness to Him, not because He forces us to be His disciples because gratitude and love cannot be forced in any way! We serve God because He loves us and because we love Him in return for everything that Jesus did for us. But, our life with Jesus brings with it a responsibility, and that responsibility is to grow in our faith and our spiritual strength as we go through this life with Him.
Reading the Bible and praying for the Spirit to teach us the meaning of it as we read is part of our life and our walk with Him. It is not really an option and it gives us the ability to resist the temptations and the “fiery darts” which are sent our way as we live in service to Him. If you don’t grow and learn from Him in your daily walk with Him and in reading His Word, then you will be overcome at some point when temptation or trials come your way.