κοπιάω, 
κοπιῶ (3 person plural 
κοπιουσιν (for 
κοπιῶσιν), 
Matthew 6:28 Tr; cf. 
ἐρωτάω, at the beginning); 1 aorist 
ἐκοπίασα; perfect 
κεκοπίακα (2 person singular 
κεκοπίακες, 
Revelation 2:3 L T Tr WH, cf. (
Winers Grammar, § 13, 2 c.); 
Buttmann, 43 (38) (and his translation of 
Apollonius Dyscolus, p. 54 n.; 
Tdf. Proleg., p. 123; 
WHs Appendix, p. 166; 
Sophocles' Lexicon, p. 39)); (
κόπος, which see); 
1. as in 
Aristophanes, 
Josephus, 
Plutarch, others, 
to grow weary, tired, exhausted, (with toil or burdens or grief): 
Matthew 11:28; 
Revelation 2:3; 
κεκοπιακώς ἐκ τῆς ὁδοιπορίας, 
John 4:6 (
ὑπό τῆς ὁδοιπορίας,
Josephus, Antiquities 2, 15, 3; 
δραμοῦνται καί οὐ κοπιασουσι, 
Isaiah 40:31). 
2. in Biblical Greek alone, 
to labor with wearisome effort, to toil (the 
Sept. for 
יָגַע ); of bodily labor: absolutely, 
Matthew 6:28; 
Luke 5:5; 
Luke 12:27 (not 
Tdf.); 
John 4:38; 
Acts 20:35; 
1 Corinthians 4:12; 
Ephesians 4:28; 
2 Timothy 2:6 (cf. 
Winers Grammar, 556 (517); 
Buttmann, 390 (334)); 
τί, upon a thing, 
John 4:38. of the toilsome efforts of teachers in proclaiming and promoting the kingdom of God and Christ: 
1 Corinthians 15:10; 
1 Corinthians 16:16 (cf. 
John 4:38); followed by 
ἐν with the dative of the thing in which one labors, 
ἐν λόγῳ καί διδασκαλία, 
1 Timothy 5:17; 
ἐν ὑμῖν,among you, 
1 Thessalonians 5:12; 
ἐν κυρίῳ (see 
ἐν, I. 6 b., p. 211b middle (
L brackets the clause)), 
Romans 16:12; 
εἰς τινα, for one, for his benefit, 
Romans 16:6; 
Galatians 4:11 (cf. 
Buttmann, 242 (200); 
Winer's Grammar, 503 (469)); 
εἰς τοῦτο, looking to this (viz. that piety has the promise of life), 
1 Timothy 4:10; 
εἰς ὁ, to which end, 
Colossians 1:29; 
εἰς κενόν, in vain, 
Philippians 2:16 (
κενῶς ἐκοπίασα, of the frustrated labor of the prophets, 
Isaiah 49:4). 
    THAYER’S GREEK LEXICON, Electronic Database.
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