4:23-31 Christ's followers do best in company, provided it is their own company. It encourages God's servants, both in doing work, and suffering work, that they serve the God who made all things, and therefore has the disposal of all events; and the Scriptures must be fulfilled. Jesus was anointed to be a Saviour, therefore it was determined he should be a sacrifice, to make atonement for sin. But sin is not the less evil for God's bringing good out of it. In threatening times, our care should not be so much that troubles may be prevented, as that we may go on with cheerfulness and courage in our work and duty. They do not pray, Lord let us go away from our work, now that it is become dangerous, but, Lord, give us thy grace to go on stedfastly in our work, and not to fear the face of man. Those who desire Divine aid and encouragement, may depend upon having them, and they ought to go forth, and go on, in the strength of the Lord God. God gave a sign of acceptance of their prayers. The place was shaken, that their faith might be established and unshaken. God gave them greater degrees of his Spirit; and they were all filled with the Holy Ghost, more than ever; by which they were not only encouraged, but enabled to speak the word of God with boldness. When they find the Lord God help them by his Spirit, they know they shall not be confounded, Isa 1.7.

29. now, Lord, behold their threatenings—Recognizing in the threatenings of the Sanhedrim a declaration of war by the combined powers of the world against their infant cause, they seek not enthusiastically to hide from themselves its critical position, but calmly ask the Lord of heaven and earth to "look upon their threatenings."

that with all boldness they may speak thy word—Rising above self, they ask only fearless courage to testify for their Master, and divine attestation to their testimony by miracles of healing, &c., in His name.