John Calvin's Commentary on the Bible - Matthew 14:27
Verse 27 27.But immediately Jesus spake to them. As Christ is not known to be a Deliverer till he actually makes his appearance, he speaks, and desires his disciples to recognize him. That confidence, to which he exhorts them, is represented by him as founded on his presence; plainly implying that, since they perceive him to be present with them, there are abundant grounds of hope. But as terror had already overpowered their minds, he corrects that terror, lest it should hinder or abate their... read more
Adam Clarke's Commentary on the Bible - Matthew 14:29
Peter - walked on the water - However impossible the thing commanded by Christ may appear, it is certain he will give power to accomplish it to those who receive his word by faith; but we must take care never to put Christ's power to the proof for the gratification of a vain curiosity; or even for the strengthening of our faith, when the ordinary means for doing that are within our reach. read more