to be behind: to fall short of, lack, or come up short of what one should have or reach
The word starts from a simple picture: being behind. Its parent word means "later" or "coming after," and every use grows from that image of lagging behind, whether behind in time, behind a rival, behind a required amount, or behind a mark one was meant to reach. By New Testament times the everyday sense had settled on "to lack" or "to be short of," the way a shop runs short of stock or a household runs out of money.
From there the senses fan out:
- falling short of a goal or standard one was meant to reach (Romans 3:23; Hebrews 4:1)
- lacking the one thing still needed to be complete (the rich man told he lacks one thing)
- being in plain material need, going without food or means (the prodigal son; Paul learning to live with little)
- a supply running out (the wine at the wedding in Cana)
- ranking below someone, being their inferior (Paul insisting he is in no way behind the "super-apostles")
One thread ties these together: coming behind. A person in want has fallen behind on life's necessities; an inferior has fallen behind a rival; a sinner has fallen behind the glory God intended. Greek keeps them one word where English reaches for several. A near cousin in Greek is λείπω, which also means "to lack," and the standard Hebrew counterpart is חסר, the word behind "The LORD is my shepherd, I shall not want."
Nuances
What "the glory of God" is that all humanity is said to fall short of or lack in Romans 3:23. The present-tense middle form marks an ongoing state of deprivation; the verb is agreed to mean coming short of or being deprived of something, so the dispute turns entirely on the referent of he doxa tou theou. The Hellenistic-Jewish background (Sirach 11:11; Theodotion-Daniel 5:27, "weighed and found wanting") lends it the register of a judicial verdict rather than a mere failure to meet a standard.
- contestedThe glory Adam was clothed with and forfeited at the fall, so that all humanity now lacks a glory it once possessed, drawing on Second Temple Adam traditions.; J. D. G. Dunn, Romans 1-8, WBC 38A (Dallas: Word, 1988), 167-68; E. Kasemann, Commentary on Romans (Grand Rapids: Eerdmans, 1980), 94-95
- contestedThe future, eschatological glory believers do not yet possess and will receive at the end (linked to Romans 5:2; 8:18-30).; C. E. B. Cranfield, Romans, ICC (Edinburgh: T&T Clark, 1975), 1:204-5; D. J. Moo, The Epistle to the Romans, NICNT (Grand Rapids: Eerdmans, 1996), 226-27
- minorityThe vocation of image-bearing: humanity's calling to reflect God's rule over creation, now forfeited.; N. T. Wright, 'The Letter to the Romans,' NIB 10 (Nashville: Abingdon, 2002), 470, 526
- minorityThe honor or standing before God that sinners have lost, read within a Greco-Roman honor-and-shame framework.; R. Jewett, Romans: A Commentary, Hermeneia (Minneapolis: Fortress, 2007), 279-80
- minorityGod's approval or approbation, taking "glory of God" as the praise that comes from God (compare John 12:43).; J. Calvin, Commentary on Romans (Grand Rapids: Eerdmans), 140
Whether the verb in Hebrews 4:1 means to fall short of the promised rest (the race or pilgrimage image) or to have come too late for it (the temporal sense of the parent word "later"). The perfect form marks a completed, definitive shortfall as seen from the vantage of judgment.
- majorityTo seem to have fallen short of reaching the promised rest, in the athletic image of failing to finish the course; the eschatological "today" framing lets a faint temporal echo remain.; H. W. Attridge, The Epistle to the Hebrews, Hermeneia (Philadelphia: Fortress, 1989), 125-27; W. L. Lane, Hebrews 1-8, WBC 47A (Dallas: Word, 1991)
- minorityTo seem to have come too late, as though the time for entering God's rest had already passed.; H. Grotius, Annotationes in Novum Testamentum, ad loc.; J. C. K. von Hofmann, Die heilige Schrift Neuen Testaments, ad loc.