John Calvin
He seems to talk of his own virtue in rather loftier terms than becomes a pious and modest man. But let us remember that, seeing the thing was in itself invidious and liable to many objections, it stood in need of special commendation as a means of suppressing envy. He therefore mentions that he had acted in good faith in bringing back an account of what he had learned concerning the land. For the expression, "As it was in my heart," evidently denotes sincerity, the heart being thus opposed to deceitful words. It is a ridiculous fiction to imagine that he had said it in his heart, because from fear of being killed by his companions he had not ventured to mention anything of the kind by the way. Nothing more is meant than simply this, that he acted honestly according to the command given him, without gloss or dissimulation. He enlarges on the merit of his integrity, because though he was opposed by all his colleagues, with the exception of Joshua, he did not yield to their malice, nor was dispirited by their iniquitous conspiracy, but steadfastly pursued his purpose. The words taken in their most literal sense are, I filled or fulfilled to go after thy God; but the obvious meaning is, that he was not seduced from a faithful discharge of his duty by the wicked machination of ten men, however difficult it was to resist them, because he followed God with inflexible perseverance, feeling perfectly assured that God was the author of the expedition, from which those perfidious men were endeavoring to draw off the people.
Let us learn from this passage, first, that unless the last part corresponds to the first, good beginnings vanish away; secondly, that constancy is deserving of praise only when we follow God.