Heal the sick, cleanse the lepers, raise the dead, cast out devils:
freely you have received, freelygive.
from Matthew Henry's Concise Commentary on Matthew 10:5-15:
Wherever they went they must proclaim, The kingdom of heaven is at hand. They preached, to establish the faith; the kingdom, to animate the hope; of heaven, to inspire the love of heavenly things, and the contempt of earthly; which is at hand, that men may prepare for it without delay. Christ gave power to work miracles for the confirming of their doctrine.
In proclaiming the gospel of free grace for the healing and saving of men's souls, we must above all avoid the appearance of the spirit of an hireling. They are directed what to do in strange towns and cities. The servant of Christ is the ambassador of peace to whatever place he is sent. His message is even to the vilest sinners, yet it behoves him to find out the best persons in every place. It becomes us to pray heartily for all, and to conduct ourselves courteously to all. They are directed how to act as to those that refused them. The whole counsel of God must be declared, and those who will not attend to the gracious message, must be shown that their state is dangerous. This should be seriously laid to heart by all that hear the gospel, lest their privileges only serve to increase their condemnation.
1 Corinthians 4:7
For who makes you to differ from another? and what have you that you did not receive? now if you did receive it, why do you glory, as if you had not received it?from Matthew Henry's Concise Commentary on 1 Corinthians 4:7-13
We have no reason to be proud; all we have, or are, or do, that is good, is owing to the free and rich grace of God. A sinner snatched from destruction by sovereign grace alone, must be very absurd and inconsistent, if proud of the free gifts of God.
All Christians are not alike exposed. Some suffer greater hardships than others. The apostle enters into particulars of their sufferings. And how glorious the charity and devotion that carried them through all these hardships! They suffered in their persons and characters as the worst and vilest of men; as the very dirt of the world, that was to be swept away: nay, as the offscouring of all things, the dross of all things. And every one who would be faithful in Christ Jesus, must be prepared for poverty and contempt. Whatever the disciples of Christ suffer from men, they must follow the example, and fulfil the will and precepts of their Lord. They must be content, with Him and for Him, to be despised and abused. It is much better to be rejected, despised, and ill used, as St. Paul was, than to have the good opinion and favour of the world. Though cast off by the world as vile, yet we may be precious to God, gathered up with His own hand, and placed upon His throne.