G2727–κατηχέω–katēcheō

that thou mightest know the certainty concerning the things wherein thou wast instructed.

κατηχήθης katēchēthēs “you were instructed”

This man had been instructed in the way of the Lord; and being fervent in spirit, he spake and taught accurately the things concerning Jesus, knowing only the baptism of John:

κατηχημένος katēchēmenos “instructed”

and they have been informed concerning thee, that thou teachest all the Jews who are among the Gentiles to forsake Moses, telling them not to circumcise their children neither to walk after the customs.

κατηχήθησαν katēchēthēsan “They have been informed”

these take, and purify thyself with them, and be at charges for them, that they may shave their heads: and all shall know that there is no truth in the things whereof they have been informed concerning thee; but that thou thyself also walkest orderly, keeping the law.

κατήχηνται katēchēntai “they have been informed”

and knowest his will, and approvest the things that are excellent, being instructed out of the law,

κατηχούμενος katēchoumenos “being instructed”

howbeit in the church I had rather speak five words with my understanding, that I might instruct others also, than ten thousand words in a tongue.

κατηχήσω, katēchēsō “I may instruct,”

But let him that is taught in the word communicate unto him that teacheth in all good things.

κατηχούμενος katēchoumenos “being taught”κατηχοῦντι katēchounti “teaching”