κατηχέωkatēchéō
to sound down into the ears, i.e. (by implication) to indoctrinate ("catechize") or (genitive case) to apprise of
Greek (New Testament) · G2727
Meanings
1. to resound.
2. to teach by word of mouth, instruct, inform (see Bl., Phil. Gosp., 20, 31): Galatians 6:6; with accusative of person, 1 Corinthians 14:19; passive with accusative of thing, Luke 1:4 (ICC, in l.), Acts 18:25, Acts 21:24 (cf. Luke 1:4), Galatians 6:6; followed by ἐκ, with genitive of thing, Romans 2:18; περί, with genitive of person, Acts 21:21.
Same root
Where it appears
Appears 8 times in the Bible.
- Luke 1:4 so you can be certain of the truth of everything you were taught.
- Acts 18:25 He had been taught the way of the Lord, and he taught others about Jesus with an enthusiastic spirit and with accuracy. However, he knew only about John’s baptism.
- Acts 21:21 But the Jewish believers here in Jerusalem have been told that you are teaching all the Jews who live among the Gentiles to turn their backs on the laws of Moses. They’ve heard that you teach them not to circumcise their children or follow other Jewish customs.
- Acts 21:24 Go with them to the Temple and join them in the purification ceremony, paying for them to have their heads ritually shaved. Then everyone will know that the rumors are all false and that you yourself observe the Jewish laws.
- Romans 2:18 You know what he wants; you know what is right because you have been taught his law.
- 1 Corinthians 14:19 But in a church meeting I would rather speak five understandable words to help others than ten thousand words in an unknown language.
Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.