Amen! The Greek word for "repent" is "metanoia" (noun) and "matanoeo" (verb) you see as defined in the Strongs #3340, 3341: to think differently or afterwards, reconsider. After thought, change of mind.
3341. metanoia
► Strong's Concordance metanoia: change of mind, repentance
Original Word: μετάνοια, ας, ἡ
Part of Speech: Noun, Feminine
Transliteration: metanoia
Phonetic Spelling: (met-an'-oy-ah)
Short Definition: repentance, a change of mind
Definition: repentance, a change of mind, change in the inner man.
HELPS Word-studies
Cognate: 3341 metánoia – literally, "a change of mind" ("
after-
thought");
repentance.
See 3340 /metanoeō ("repent").
Matthew 21:32 - For John came to you to show you the way of righteousness, and you
did not believe him, but the tax collectors and the prostitutes did. And even after you saw this, you did not
repent and believe him.
Mark 1:15 -
"Repent and believe the gospel."
Acts 20:21 -
.."repentance toward God, and faith in our Lord Jesus Christ."
A person cannot believe (trust) in Christ for salvation without repenting (changing his mind) in the process. In the context of Luke 13:3, Jesus challenged the people's notion that they were morally superior to those who suffered in such catastrophes. He called all to
repent or perish. For some people though, prior to coming to the end result of repentance in receiving salvation (saving faith in Christ), they must change their minds about other specific things in order to get there. Repentance, metanoia, focuses on changing one's mind about his previous concept of God (as in Acts 17:30) and disbelief in God or false beliefs (polytheism and idolatry) about God (see 1 Thessalonians 1:9). On the other hand, belief in Christ, as an expression of this change of mind, focuses on the new direction that change about God must ultimately take, namely, trusting God's Son, Jesus Christ, alone for salvation.
Certain people misunderstand the term "repentance" to simply mean "completely stop sinning." That is not the Biblical definition of repentance. In the Bible, the word "repent" means to "change your mind." The Bible also tells us that true repentance will
result in a change of actions. Believers are now moving in a new direction and have turned from darkness to light (Acts 26:18).
Acts 26:20 declares, "I preached that they should
repent and turn to God and prove their repentance by their deeds." This is the
fruit of repentance (Matthew 3:8), not the essence of repentance (change of mind). Certain people confuse the "fruit of repentance" with the "essence of repentance" (and also do the same thing with faith) and end up teaching salvation by works.
I have heard certain people say, "If you want to be saved, repent of your sins, turn from your sins." If turning from your sins means to stop sinning, then people can only be saved if they stop sinning. And in that case, it is unlikely that anyone will be saved, since we don't know anyone who has ever "completely stopped sinning."