18 distinct Greek words appear in this verse.

3 passages from patristic writers, Reformers, and church catechisms citing this verse.

• 1Cor 15:58 — Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.
• 1Thess 3:1 — Wherefore when we could no longer forbear, we thought it good to be left at Athens alone;
• 2Cor 2:11 — Lest Satan should get an advantage of us: for we are not ignorant of his devices.
• 2Cor 7:5 — For, when we were come into Macedonia, our flesh had no rest, but we were troubled on every side; without were fightings, within were fears.
• 2Cor 11:3 — But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.
• Col 1:23 — If ye continue in the faith grounded and settled, and be not moved away from the hope of the gospel, which ye have heard, and which was preached to every creature which is under heaven; whereof I Paul
• Dan 6:19 — Then the king arose very early in the morning, and went in haste unto the den of lions.
• Eph 4:14 — That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive;
• Gal 1:6 — I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
• Gal 2:2 — And I went up by revelation, and communicated unto them that gospel which I preach among the Gentiles, but privately to them which were of reputation, lest by any means I should run, or had run, in va
• Gal 4:11 — I am afraid of you, lest I have bestowed upon you labour in vain.
• Isa 49:4 — Then I said, I have laboured in vain, I have spent my strength for nought, and in vain: yet surely my judgment is with the LORD, and my work with my God.
• Jas 1:13 — Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man:
• John 15:4 — Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.
• Matt 4:3 — And when the tempter came to him, he said, If thou be the Son of God, command that these stones be made bread.
• Matt 4:3 — And when the tempter came to him, he said, If thou be the Son of God, command that these stones be made bread.
• Phil 2:16 — Holding forth the word of life; that I may rejoice in the day of Christ, that I have not run in vain, neither laboured in vain.
• Phil 2:16 — Holding forth the word of life; that I may rejoice in the day of Christ, that I have not run in vain, neither laboured in vain.
• Phil 3:11 — If by any means I might attain unto the resurrection of the dead.
• Song 7:12 — Let us get up early to the vineyards; let us see if the vine flourish, whether the tender grape appear, and the pomegranates bud forth: there will I give thee my loves.