Luke 9:57

Follow thee, &c. Although the Sovereign Lord of all is most munificent, yet he does not lavish his gifts on all without distinction, but bestows them on the worthy only. When, therefore, this man offered to follow Christ, he answers him by telling him, that all who follow him, must daily take up their cross, and renounce the conveniences of this life. Thus he mentions what was reprehensible in his person. There appears likewise great presumption in his conduct, as he did not petition to be admitted, as other Jews did, but seems to claim the honour of the apostleship; an honour which none must assume, but such as are called by God. (Hebrews v.) (St. Cyril in St. Thomas Aquinas)