17:1 All the congregation of the people of Israel moved on from the wilderness of Sin by stages, according to the commandment of the Lord, and camped at Rephidim, but there was no water for the people to drink.
2 Therefore the people quarreled with Moses and said, "Give us water to drink." And Moses said to them, "Why do you quarrel with me? Why do you test the Lord?" 3 But the people thirsted there for water, and the people grumbled against Moses and said, "Why did you bring us up out of Egypt, to kill us and our children and our livestock with thirst?" 4 So Moses cried to the Lord, "What shall I do with this people?" They are almost ready to stone me." 5 And the Lord said to Moses, "Pass on before the people, taking with you some of the elders of Israel, and take in your hand the staff with which you struck the Nile, and go. 6 Behold, I will stand before you there on the rock at Horeb, and you shall strike the rock, and water shall come out of it, and the people will drink." And Moses did so, in the sight of the elders of Israel. 7 And he called the name of the place Massah and Meribah, because of the quarreling of the people of Israel, and because they tested the Lord by saying, "Is the Lord among us or not?"
Epistle: 1 Corinthians 9:24-10:5 (ESV)
24 Do you not know that in a race all the runners run, but only one receives the prize? So run that you may obtain it. 25 Every athlete exercises self-control in all things. They do it to receive a perishable wreath, but we an imperishable. 26 So I do not run aimlessly; I do not box as one beating the air. 27 But I disciple my body and keep it under control, lest after preaching to others I myself should be disqualified. 10:1 For I want you to know, brothers, that our fathers were all under the cloud, and all passed through the sea, 2 and all were baptized into Moses in the cloud and in the sea, 3 and all ate the same spiritual food, 4 and all drank the same spiritual drink. For they drank from the spiritual Rock that followed them, and the Rock was Christ. 5 Nevertheless, with most of them God was not pleased, for they were overthrown in the wilderness.
Holy Gospel: Matthew 20:1-16 (ESV)
20:1 "For the kingdom of heaven is like a master of a house who went out early in the morning to hire laborers for his vineyard. 2 After agreeing with the laborers for a denarius a day, he sent them into his vineyard. 3 And going out at about the third hour he saw others standing idle in the marketplace, 4 and to them he said, 'You go into the vineyard too, and whatever is right I will give you.' 5 So they went. Going out again about the sixth hour and the ninth hour, he did the same. 6 And about the eleventh hour he went out and found others standing. And he said to them, 'Why do you stand here idle all day?' 7 They said to him, 'Because no one has hired us.' He said to them, 'You go into the vineyard too.'
8 And when evening came, the owner of the vineyard said to his foreman, 'Call the laborers and pay them their wages, beginning with the last, up to the first.' 9 And when those hired about the eleventh hour came each of them received a denarius. 10 Now when those hired first came, they thought they would receive more, but each of them also received a denarius. 11 And on receiving it they grumbled at the master of the house, 12 saying, 'These last worked only one hour, and you have made them equal to us who have borne the burden of the day and the scorching heat.' 13 But he replied to one of them, 'Friend, I am doing you no wrong. Did you not agree with me for a denarius? 14 Take what belongs to you and go. I choose to give to this last worker as I give to you. 15 Am I not allowed to do what I choose with what belongs to me? Or do you begrudge my generosity?' 16 So the last will be first, and the first last."
The people of Israel contended with the Lord in the wilderness (Exodus 17:1-7). They were dissatisfied with His provision. In the same way, the first laborers in the vineyard complained against the landowner for the wage he provided them (Matthew 20:1-16). They charged him with being unfair, but in reality he was being generous. For the Lord does not wish to deal with us on the basis of what we deserve but on the basis of His abounding grace in Christ. The first-those who rely on their own merits-will be last. "For they were overthrown in the wilderness" (1 Corinthians 10:5). But the last, those who rely on Christ, will be first. For Christ is the Rock (1 Corinthians 9:24-10:5). He is the One who was struck and from whose side blood and water flowed that we may be cleansed of our sin.
