Luke 9:58

He compares foxes to heretics, because they are indeed a wily animal, and, ever intent upon fraud, commit their robberies by stealth. They let nothing be safe, nothing be at rest, nothing secure, for they hunt their prey into the very abodes of men. The fox again, an animal full of craft, makes no hole for itself, yet likes to lie always concealed in a hole. So the heretics, who know not how to construct a house for themselves, circumscribe and deceive others. This animal is never tamed, nor is it of use to man. Hence the Apostle, A heretic after the first and second admonition reject. (Tit. 3:10.) But the birds of the air, which are frequently brought in to represent spiritual wickedness, build as it were their nests in the breasts of the wicked, and as long as deceit reigns over the affections, the divine principle has no opportunity to take possession. But when a man has proved his heart to be innocent, upon him Christ leans in some measure the weight of His greatness, for by a more abundant shedding of grace He is planted in the breasts of good men. So then it does not seem reasonable that we should think him faithful and simple, who is rejected by the judgment of the Lord, notwithstanding that he promised the service of unwearied attendance; but our Lord cares not for this kind of service, but only purity of affection, nor is his attendance accepted whose sense of duty is not proved. For the hospitality of faith should be given with circumspection, lest while opening the interior of our house to the unbelieving, through our imprudent credulity we fall a snare to the treachery of others. Therefore that you may be aware that God despises not attendance upon him but deceit, He who rejected the deceitful man chose the innocent. For it follows, And he said unto another, Follow me. But He says this to him, whose father He knew to be dead. Hence it follows, But he said, Lord, suffer me first to go and bury my father.

See how our Lord sets forth by his works the poverty which he taught. For him was no table spread, no lights, no house, nor any such thing.

Therefore it is said to him, Why do you seek to follow Me for the riches and gain of this world, when so great is My poverty that I have not even a place of rest, and take shelter under another man's roof.

(non occ.) Although the Almighty Lord is bountiful, He does not grant to every one absolutely and indiscriminately heavenly and divine gifts, but to those only who are worthy to receive them, who free themselves and their souls from the stains of wickedness. And this we are taught by the force of the angelic words, And it came to pass, that, us they went in the way, a certain man said unto him, Lord, I will follow thee. First indeed there is much tardiness implied in the manner of his coming. It is next shown that he is filled with too great presumption. For he sought not to follow Christ simply as several others of the people, but rather caught at the honour of the Apostleship. Whereas Paul says, No one taketh the honour to himself but he that is called of God. (Heb. 5:4.) In another respect also our Lord deservedly gives him a refusal, for He taught that to follow the Lord, a man must take up his cross, and renounce the affection of this present life. And our Lord finding this lacking in him does not blame him, but corrects him. It follows, And Jesus says to him, The foxes have holes, &c. Now under a mystical signification He applies the name of foxes and birds of the air to the wicked and crafty powers of evil spirits. As if He said, Since foxes and birds of the air have their abode in thee, how shall Christ rest in thee? What fellowship has light with darkness? (2 Cor. 6:14.)