> 
> [Galatians 5:19 Now](https://biblehub.com/galatians/5-19.htm) the works of the flesh are manifest, which are
>  these; Adultery, fornication, uncleanness, lasciviousness,
> 
> 
> 

What is the difference between adultery, fornication, uncleanness & lasciviousness in the verse above? I looked into the Greek from [this website](http://www.godrules.net/library/kjvstrongs/kjvstrongsgal5.htm) but could not understand well.
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The word ἀδελφός (adelphos) occurs well over 300 times in the NT for which BDAG has two basic meanings:

> 
> (1) **a male from the same womb as the reference person, *brother***,
>  eg, **Matt 1:2, 11, 4:18, 21, Gal 1:19**, etc. … Hence there is no
>  doubt that in Luke 21:16 that the plural "adelphoi" = brothers and
>  sisters …
> 
> 
> **(2) a person viewed as a brother in terms of a close affinity, *brother, fellow member, member, associate***
> 
> 
> (a) one who shares beliefs eg, matt 12:50, Mark 3:35 … 
> 
> 
> (b) a compatriot Lev 10:4, 15:3, 12, 17:15, Acts 2:29, 3:17 etc.
> 
> 
> (c) without reference to a common nationality or faith, neighbor 9or
>  an intimate friend), eg, Matt 5:22, 7:3, etc.
> 
> 
> (d) Form of addressused by a king to persons in very high position -
>  (used in classical, non-Biblical literature)
> 
> 
> 

I have only included the highlights from BDAG to provide the general idea. For more detail consult BDAG. However, it appears correct that "adelphos" can, indeed, be used in the sense of fellow countryman or compatriot, or even close associate.
**What's the meaning of brother in 1 John 2.9-11?**

In context of John's writings,the expression "brothers" refers to the anointed brothers of Christ, more commonly known as "saints" they are also referred to as "the least of these brothers or sisters of mine. 

Matthew 25:40 NET

> 
> 40" And the king will answer them,[d] ‘I tell you the truth,[e] just
>  as you did it for one of **the least of these brothers** or sisters[f] of
>  mine, you did it for me."
> 
> 
>