“Say to the daughter of Zion, ‘Behold, your king is coming to you, humble, and mounted on a donkey, on a colt, the foal of a beast of burden.’” (Matthew 21:5)
This Gospel pre-figures Christ coming with grace, and none may receive or accept save he who believes him to be the man, and has the mind, as this Gospel portrays in Christ. Nothing but the mercy, tenderness and kindness of Christ are here shown, and he who so receives and believes on him is saved. He sits not upon a proud steed, an animal of war, nor does he come in great pomp and power, but sitting upon an ass, an animal of peace fit only for burdens and labor and a help to man. He indicates by this that he comes not to frighten man, nor to drive or crush him, but to help and to carry his burden for him. And although it was the custom of the country to ride on asses and to use horses for war, as the Scriptures often tell us, yet here the object is to show that the entrance of this king shall be meek and lowly.
If you believe in Christ and in his advent, it is the highest praise and thanks to God to be holy. If you recognize, love, and magnify his grace and work in you, and cast aside and condemn self and the works of self, then are you a Christian. We say: "I believe in the holy Christian church, the communion of saints." Do you desire to be a part of the holy Christian church and communion of saints, you must also be holy as she is, yet not of yourself but through Christ alone in whom all are holy.
If Christ had entered in splendor like a king of earth, the appearance and the words would have been according to nature and reason and would have seemed to the eye according to the words, but then there would have been no room for faith. He who believes in Christ must find riches in poverty, honor in dishonor, joy in sorrow, life in death, and hold fast to them in that faith which clings to the Word and expects such things.
Where the heart receives the king with a firm faith, it is secure and does not fear sin, death, hell, nor any other evil; for he well knows and in no wise doubts that this king is the Lord of life and death, of sin and grace, of hell and heaven, and that all things are in his hand. For this reason he became our king and came down to us that he might deliver us from these tyrants and rule over us himself alone. Therefore he who is under this king cannot be harmed either by sin, death, hell, Satan, man or any other creature.
See, such great things are contained in these seemingly unimportant words: "Behold, your king." Such boundless gifts are brought by this poor and despised king. All this reason does not understand, nor nature comprehend, but faith alone does. Therefore he is called “your king”; you who are vexed and harassed by sin, Satan, death and hell, the flesh and the world, so that you may be governed and directed in the grace, in the spirit, in life, in heaven, in God. With this word, therefore, he demands faith in order that you may be certain that he is such a king to you, has such a kingdom, and has come and is proclaimed for this purpose. If you do not believe this of him, you will never acquire such faith by any work of yours. What you think of him you will have; what you expect of him you will find; and as you believe so shall it be to you. He will still remain what he is, the King of life, of grace, and of salvation, whether he is believed on or not.