SEV Biblia, Chapter 6:4
Así que cada uno examine su obra, y entonces tendr gloria slo respecto de sí mismo, y no en otro.
Clarke's Bible Commentary - Galatians 6:4
Verse 4. Prove his own work] Let him examine himself and his conduct by the words and example of Christ; and if he find that they bear this touchstone, then he shall have rejoicing in himself alone, feeling that he resembles his Lord and Master, and not in another - not derive his consolation from comparing himself with another who may be weaker, or less instructed than himself. The only rule for a Christian is the word of Christ; the only pattern for his imitation is the example of Christ. He should not compare himself with others; they are not his standard. Christ hath left us an example that we should follow his steps.
John Gill's Bible Commentary
Ver. 4. But let every man prove his own work , etc..] Not concern himself about the actions and works of others; let him review his own heart and actions; let him examine, try, and prove his whole conduct in life by the rule of God's word, when he will find enough at home, without bearing hard upon, and censuring others: and then shall he have rejoicing in himself alone , and not in another; which is either ironically said, he will then see what reason he has to rejoice and glory in his own works, and vaunt over others, and to boast of his performances, and despise others; so far from it, that he will have reason to be ashamed of himself, and to own and acknowledge his unworthiness and unprofitableness: or if, upon such a review, examination, and probation of his works, it shall appear that he has had his conversation in the world, by the grace of God, in simplicity and godly sincerity, this testimony of his conscience will be his rejoicing; (see 2 Corinthians 1:12). He may rejoice in himself, in his own works, as the fruits of grace, but not as the effects of his own power and strength; and may glory and boast of them before men, in vindication of his cause and character, and as evidences of the truth of grace, but not before God, as if they were the matter of his justification and acceptance: and not in another ; that is fallen into sin; making use of his sins and faults to set off himself, and to increase his own praise and condemnation; rejoicing in this, that he is better than others, and is not, as the Pharisee said, as other men are, as wicked as they, or has not fallen into such sins as others have done. He will have occasion to take such a method as this, if his conversation will bear the test; he will have rejoicing in the testimony of his own conscience, and will have no need to compare himself with others; his glorying will be on account of his own actions, and not through a comparison of other men's. This no ways contradicts a man's glorying in God, and rejoicing in Christ Jesus alone, in the business of salvation. It only regards a man's glorying before men, in a modest and humble manner, of what he is enabled to do, by the grace of God, without fetching in the characters of other men that are wicked, or have fallen, to illustrate his own.
Matthew Henry Commentary
Verses 1-5 - We are to bear one another's burdens. So we shall fulfil the law of Christ. This obliges to mutual forbearance and compassion towards eac other, agreeably to his example. It becomes us to bear one another' burdens, as fellow-travellers. It is very common for a man to look upo himself as wiser and better than other men, and as fit to dictate to them. Such a one deceives himself; by pretending to what he has not, he puts a cheat upon himself, and sooner or later will find the sad effects. This will never gain esteem, either with God or men. Every on is advised to prove his own work. The better we know our own hearts an ways, the less shall we despise others, and the more be disposed to help them under infirmities and afflictions. How light soever men' sins seem to them when committed, yet they will be found a heav burden, when they come to reckon with God about them. No man can pay ransom for his brother; and sin is a burden to the soul. It is spiritual burden; and the less a man feels it to be such, the mor cause has he to suspect himself. Most men are dead in their sins, an therefore have no sight or sense of the spiritual burden of sin Feeling the weight and burden of our sins, we must seek to be ease thereof by the Saviour, and be warned against every sin.
Greek Textus Receptus
το 3588 δε 1161 εργον 2041 εαυτου 1438 δοκιμαζετω 1381 5720 εκαστος 1538 και 2532 τοτε 5119 εις 1519 εαυτον 1438 μονον 3441 το 3588 καυχημα 2745 εξει 2192 5692 και 2532 ουκ 3756 εις 1519 τον 3588 ετερον 2087
Vincent's NT Word Studies
4. Prove (dokimazetw). In Class. of assaying metals Comp. LXX, Prov. viii. 10; xvii. 3; Sir. ii. 5; also 1 Cor. iii. 13; 1 Pet. i. 7. It is the classical verb for testing money; see Plato, Tim. 65 C. Dokimazein and purousqai to burn or try by fire occur together, Jer. ix. 7; Psalm xi. 6; lxv. 10. Generally, to prove or examine, as 1 Cor. xi. 28; 1 Thessalonians v. 21. To accept that which is approved, 1 Cor. xvi. 3; 2 Cor. viii. 22; 1 Thess. ii. 4.
Rejoicing (to kauchma). Better, as giving the force of the article, "his glorying." Kauchma is the matter or ground of glorying, see Rom. iv. 2; 1 Corinthians ix. 15; not the act (kauchsiv), as Rom. iii. 27; 2 Corinthians i. 12. 89 In himself (eiv eauton). Better, with regard to himself, or as concerns. For this use of eijv see Rom. iv. 20; xv. 2; xvi. 6; Eph. iii. 16. Not, he will keep his glorying to himself or abstain from boasting. He means that if, on examination, one finds in himself anything to boast of, his cause of boasting will lie simply and absolutely in that, and not in his merit as compared, to his own advantage, with that of another.
Another (ton eteron). Better, the other, or, as Rev., his neighbor. See on Matt. vi. 24.