John 8:23-24, 31-32 - But [Jesus] continued, “You are from below; I am from above. You are of this world; I am not of this world.  I told you that you would die in your sins; if you do not believe that I am the one I claim to be, you will indeed die in your sins.”
To the Point
Jesus rarely, if ever, beat around the bush. Time was precious to him, so he usually cut straight to the chase. He knew how to get the attention of his hearers. In our Scripture, Jesus shares with those to whom he is speaking several important facts about them and the world in which they lived.
Faith in Action
True, biblical, and God-glorifying faith in Christ has teeth to it. It’s got a practicality that demands to be noticed. It’s unlikely the early church was so heavily persecuted and martyred simply because they intellectually accepted particular truth-claims about Jesus and then told others they needed to do the same to go to heaven.
Instead, because they believed Jesus was who he claimed to be and thus loved and followed him, they therefore obeyed him. Put another way: They put their faith into practice.
As their faith in Christ permeated every sphere of their lives they began to be noticed by the worldlings around them. It was this authentic non-conformity to the world around them that led to their persecution. They refused to be “squeezed into the mold” of this world.
The Shape of Discipleship
If we would be people of the truth, we must be Christ’s disciples. If we would be his disciples, we must believe in him, trust him, and obey him. Nothing less is worthy of the One who is the true Lord and King of the universe, which includes this world.
The “Pretenders to the Throne” notwithstanding, (their reign, after all, is temporary), our allegiance must be to Christ alone. And that allegiance has a shape to it. It is not mere intellectual ascent of a few doctrinal propositions (though it includes that). It is not simply a warm-fuzzy feeling in the pit of your stomach. It is far more. Allegiance to Christ is incarnational. It has skin on it. It has teeth to it. If we would be his, we must submit to his Lordship – his absolute authority – by obeying him in every sphere of our lives. Only then can we rightly claim to be his disciples.