Matthew 20:16

In the context of the parable, 'the last' refers to the laborers hired at the end of the day. It does not necessarily imply 'the least important' or 'the most suffering' in a general social sense, but rather those who were called later to service in the vineyard. The reversal is not of a worldly social status, but of the human expectation of reward proportional to work time or merit.

In the parable, 'the first' are those laborers who were hired at the beginning of the day and who expected a greater reward due to their greater effort or seniority. The phrase challenges this expectation, showing that God's grace is not based on human comparisons or merits, but on His sovereign generosity.

The additional phrase 'for many are called, but few chosen' (πολλοὶ γάρ εἰσιν κλητοί, ὀλίγοι δὲ ἐκλεκτοί) is a proverbial saying repeated in Matthew 22:14. In this context, it could be a warning to the 'first' (those who hold a privileged position or feel entitled) that not all 'called' to the vineyard are 'chosen' to understand and accept God's generosity. It reinforces the idea of God's sovereignty in election and a challenge to self-sufficiency.

Patristic

John Chrysostom, in his Homily 64 on Matthew (In Matthaeum, hom. 64, PG 58, 607-614), offers an extensive commentary on the parable of the laborers in the vineyard and its conclusion in Mt 20:16. Chrysostom explains that the parable is primarily a corrective aimed at Peter's attitude expressed in Mt 19:27, where Peter asked what the disciples would receive for having left everything. Chrysostom clarifies that the equal wage does not imply identical eschatological glory, but rather illustrates God's sovereign and gratuitous goodness. He explicitly describes the parable as a 'reproach to envy' (ἔλεγχος φθόνου) and insists that reward depends on the Lord's generosity rather than on any human reckoning of merit. Augustine of Hippo addresses this parable in several works: in De opere monachorum (CSEL 41) and especially in his Sermons (Sermo 87, PL 38, 531-535), where he identifies the denarius with eternal life—the single, indivisible good that God grants equally to all who are called, whether they have labored long or briefly—stressing that the distinction between 'first' and 'last' conveys a lesson about humility and prevenient grace. In Sermo 87 Augustine also warns against the pride of those who, on account of accumulated merits, presume to bargain with God rather than trusting in his mercy.

Reformed

Reformed theology emphasizes God's sovereignty in calling and reward. The parable is seen as an illustration of unmerited grace and divine election, where God distributes His favor according to His own will, not according to works or time worked. The 'last' and 'first' serve to dismantle any notion of justice based on human merit, reinforcing the doctrine of sovereign grace.

Interpretive tension: Tension can arise in reconciling the apparent 'injustice' of equal reward (from a human perspective) with God's justice, which is resolved by focusing on grace not being governed by the rules of human retributive justice, but by God's goodness. There can also be debate as to whether 'called' and 'chosen' refer to individual predestination or general calling.

Arminian

Arminian theology sees the parable as an illustration of God's prevenient grace and His call to all, regardless of when they respond. The 'last' being 'first' demonstrates the breadth of God's grace to include those who come at the end, and that reward is given by divine generosity to those who respond in faith, not by a strict merit system. The parable is a warning against pride and envy, and a call to humility and gratitude for grace.

Interpretive tension: Tension can arise in explaining how God's generosity relates to persistence in faith and obedience for those who are 'first' in service, without falling into a theology of works. If the reward is 'equal,' how is faithful and sustained service valued? The answer lies in grace, not human comparison, and in the satisfaction of the work itself.

Contemporary

Contemporary scholars like Craig Blomberg and R.T. France emphasize that the parable is a 'crisis parable,' designed to invert human expectations about reward. It is not a manual on wages, but a radical statement about the nature of God's Kingdom and the character of His grace. N.T. Wright reads it in the context of God's new creation project, where He calls everyone to participate in His kingdom, and human notions of justice are transcended by His generosity and faithfulness.