The angel of the Lord appears without warning to deliver this message. The eminence of the messenger matches the magnitude of the message.
Zacharias is seeing, not the Lord, but his angel, and yet he trembles. We contrast this with man’s foolish boasts about what he will say and do in the presence of God who is far greater than any angel. Fear and awe are always the reaction of mortal man in the presence of angels and of the Lord in Scripture. In the case of the appearance of the Lord, it is fear of one with so much power, fear of one who takes our lives in his hands, and can dispose of us according to his will, like a powerful man who holds in his hand a little bird. But that fear turns to joy as God strengthens us, as he strengthened Daniel (Daniel 10:8-10).
Fear not – because we are loved by God, and although he wants us to feel his power, he also wants us to know of his mercy and kindness. Fear cannot be the final state of our hearts, though it may be a necessary state that we have to pass through along the way. God wants the love of his children and perfect love casts out fear. Fear expects judgment, but love cannot believe that we are going to be judged.
We see the consolation of prayers heard and answered. We may submit our greatest fears to God in our prayers as well as our greatest hopes and longings. As believers, our greatest longings will be for the kingdom of heaven. Why is it such great consolation? Not just because we receive the thing we asked for, but because prayers offered in secret on earth have reached the ear of Almighty God and he is going to act on them. Our tiny request has moved the hand of God, and we are taught in Scripture to interpret what has happened in precisely that way. It is not hubris to think like this. That seems impossible when man looks at himself and measures his own smallness. How can such a small cause have such an enormous effect? How can God take account of the prayers of a single individual, and pay so much attention to one who is so insignificant? Because God delights to be a responsive Father to his children. We can and should connect the things that happen to us to the prayers we have offered up, and dare to say that God has heard us; that is what he wants us to do. There is much joy in the heart of God in answering the effectual fervent prayer of the righteous man. He knows too there is much joy in the hearts of his children in having their prayers answered, for there could not be a stronger assurance of his love for them.