ἐν
in, within
The preposition ἐν conveys location, means, sphere, and may introduce a temporal clause when used with an infinitive and finite verbs. Scripture utilizes it nearly two thousand eight hundred times, and it occurs in compound words at least three hundred times.
When used with the locative case, ἐν expresses in, on, at, among, or with. ἐν with the locative is typically with words of place, but also occurs relating to time.
Before Mary and Joseph came together, she was found with child (having in womb) out from the Holy Spirit (Matthew 1:18).
After Jesus was born in Bethlehem of Judea, the Magi from the east came (Matthew 2:1).
In those days Peter stood up in the midst of the disciples (Acts 1:15).
David’s tomb is with Israel to this day (Acts 2:29).
One among the saints who commits such a sin that not even the gentiles would approve (1 Corinthians 5:1).
ἐν uses the instrumental case to express means, with, or by.
Paul asks the Corinthian saints if he should come with a rod, or in love and a spirit of objectivity (1 Corinthians 4:21).
Some will be killed by means of the sword, hunger, or death (Revelation 6:8).
Once a year, the high priest must enter the holy of holies utilizing the blood of another (Hebrews 9:25).
The suppression of truth with unrighteousness (Romans 1:18).
ἐν will express sphere; the realm or domain within which an action or state exists.
The assemblies of Judea which were in Christ (Galatians 1:22).
I tell you the truth in Christ (Romans 9:1).
We are not in flesh, but spirit (Romans 8:9).
We are chosen in Christ (Ephesians 1:4).
Those who are in Christ, the new creation (2 Corinthians 5:17).
The temporal clause ἐν ᾧ, while, frequently uses both the infinitive and finite verbs
The sons of the bridegroom do not fast while with the bridegroom (Luke 5:34).
And while he showed (ἐν τῷ σπείρειν) some seed fell on the wayside (Matthew 13:4).
It came to be that while (ἐν τῷ εἶναι) they were there, her days for delivery were complete (Luke 2:6).
In the days (Ἐν ταύταις δὲ ταῖς ἡμέραις) of Claudius Caesar, prophets from Jerusalem came to Antioch (Acts 11:27).