Grace Team UniversityStudy to shew thyself approved unto God2 Timothy 2:15
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Strong’s Greek

G1500 — eike

The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.

εἰκῇ

eike — pronounced i-kay'

probably from 1502 (through the idea of failure); idly, i.e. without reason (or effect):--without a cause, (in) vain(-ly). see GREEK for 1502

7 occurrences in the KJV.

Matthew 5:22

But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.

Romans 13:4

For he is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is the minister of God, a revenger to execute wrath upon him that doeth evil.

1 Corinthians 15:2

By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.

Galatians 3:4

Have ye suffered so many things in vain? if it be yet in vain.

Galatians 3:4

Have ye suffered so many things in vain? if it be yet in vain.

Galatians 4:11

I am afraid of you, lest I have bestowed upon you labour in vain.

Colossians 2:18

Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind,