Jesus looking upon them ( ἐμβλέψας δὲ αὐτοῖς). The Greek verb implies an earnest, intense looking upon them; evidently narrated by one who, like Peter, had watched his countenance. St. Chrysostom says that he looked on them in this way that he might mitigate and soothe the timid and anxious minds of his disciples.
It is as though our Lord said, "It is impossible for a rich man, embarrassed and entangled with his wealth, by his own natural strength to obtain salvation; because this is a supernatural blessing, which we cannot obtain without the like supernatural aids of grace.
But with God all things are possible, because God is the Author and Source, as of nature, so of grace and glory. And he enables us, by his grace, to triumph over all the difficulties and hindrances of nature; so that rich men shall not be hindered by their riches; but, by being faithful in the unrighteous mammon, shall make it the means of their being received unto 'the eternal tabernacle.'