Jesus said elsewhere that he only did that which he already saw his Father doing. He would never just wing-it. Yet, here we see actions that seem so spontaneous and unconstrained. Jesus is walking along the Sea of Galilee, sees two young men, Simon and Andrew, slinging their fishing nets, and two others, James and John, fixing their nets. What does Jesus do? He challenges them to make an on-the-spot, monumental, career, and life changing decision. Jesus' actions are only out-staged by the immediate response of the quartet, and the dumbfounded look on Zebedee's face, as James and John fell into stride with the itinerant rabbi!
I realize that it can be pretty scary to step out into what may appear to be an unplanned adventure, and our world spontaneously combusts. Would it help to think of such a response as a spontaneous adjustment, instead? Could we think of it as God having chosen a particular moment in our life to issue a challenge that He has had in mind for eternity? For sure, such a radical step would mean letting go of many good things--things in which we have found a measure of security, personal identity, and purpose. Without question, our decision will mean that something we were going to do, at the very least, must be put on hold, or even permanently abandoned. Peers may judge us as impulsive, ours wouldn't be the only life disrupted. But if Jesus is calling, though we may not live to see the impact of our obedience, our decision will change someones world and eternal destiny.