What does “abiding in Christ” mean? The Greek word for “abide” is “men’-o.” It means to “stay” or “remain” in one place. One might say that it means to just “hang out” or be with Jesus. In one way it means to spend time with Jesus. You need to take your faith seriously. You need to spend time with Jesus if you are serious in your faith. In another sense it means that there are choices. We can choose to prioritize Jesus in our lives or we can spend time serving other “gods” or other masters in our lives. The choice is ours. We can serve God in obedience or serve other things, in disobedience to God. You cannot have two masters.
The best way to answer this question is by looking at it in context. Jesus is giving the 12 some of the last teaching and training on their way from the last supper to the Garden in Kidron where Jesus would be arrested and betrayed. The points Jesus makes are that, if you choose me as your Lord – If you spend time with me there are advantages! With me in your life you will grow your faith and bear fruit. With me you will “ask what you desire, and it shall be done for you.” With me in your life, you will have God on your side. You will make him happy. Also Jesus makes points on the other side. Dallas Willard would say “the cost of non-discipleship” (which is greater than the “cost of discipleship.” The costs of not having Jesus in your life as he argues (for himself) are that” without me you can do nothing.” In Christ, you can do all things, without him you can do nothing. It comes down to a dichotomy. You are for God or against him! Another reason follows similarly, remember that God is against you if you are not for him. “
If anyone does not abide in Me, he is thrown away as a branch, and dries up; and they gather them, and cast them into the fire, and they are burned.” God tends
the branches. Metaphorically we are the branches. Jesus is the vine. He is the
source of strength, water, and goodness –all of life. God is the Gardener and
he tends the branches that do not bear fruit. The branches that are not fully
intact with the vine, God tends. Finally it is also important to realize that God wants us to obey his rules. Remaining in him also presupposes that we continue to obey and keep his commands.