The Greek word κατηχέω (katēchéō), represented by G2727, means to sound down into the ears. By implication, it means to indoctrinate, instruct, or to apprise someone of something. It appears 8 times across 7 unique verses in the Bible, establishing its role in the context of instruction and the passing of information.
In the biblical narrative, G2727 is used to describe both formal instruction and the reception of information. For example, Apollos was "instructed in the way of the Lord" Acts 18:25, and believers are described as being "instructed out of the law" Romans 2:18. The word is also used when people were "informed" about Paul's teachings, suggesting a report or news being passed to them (Acts 21:21, Acts 21:24). Luke writes his gospel so that Theophilus might know the certainty of the things in which he had been "instructed" Luke 1:4. The term encompasses a dynamic relationship, as seen when the one who is "taught" is urged to share with the one who "teacheth" Galatians 6:6.
Several related words help clarify the concept of instruction and knowledge:
- G1097 ginṓskō: to "know" (absolutely). It is used to describe the result of being informed, where all may "know" if the things they were informed about are true Acts 21:24.
- G1321 didáskō: to teach. This word is often used alongside G2727, as in the case of Apollos, who was first "instructed" and then "taught diligently" Acts 18:25.
- G1921 epiginṓskō: to become fully acquainted with, to acknowledge. This deeper knowledge is presented as the goal of instruction, so one might "know" the certainty of the things they have been taught Luke 1:4.
- G2841 koinōnéō: to share with others. This highlights the practical relationship between teacher and student, where the one who is taught is to "communicate" with the one who teaches Galatians 6:6.
- G3056 lógos: something said; a word or matter. This often describes the content of the instruction, such as being taught "in the word" Galatians 6:6 or concerning "those things" wherein one has been instructed Luke 1:4.
The theological weight of G2727 is evident in its application to spiritual learning and discipleship.
- Foundational Learning: The word signifies the foundational instruction necessary for faith. This instruction provides the basis for a more certain and full knowledge, as described in Luke's purpose for writing his gospel Luke 1:4.
- Clear Communication: The importance of clarity in teaching is highlighted by Paul, who would rather speak five understandable words to "teach" others than ten thousand words in a tongue 1 Corinthians 14:19.
- Instruction from Scripture: The law is presented as a source of instruction, from which a person is "instructed" to know God's will Romans 2:18.
- Reciprocal Ministry: The relationship between the teacher and the taught is shown to be a mutual one, with a responsibility for the student to provide for the instructor, connecting spiritual learning to practical support within the community Galatians 6:6.
In summary, G2727 is a specific term for instruction that "sounds down" into the ears of the learner. It covers the spectrum from being informed of a matter to receiving foundational teaching in the Christian faith. It underscores the value of clear, understandable teaching and points to the relational dynamic between those who instruct and those who learn, forming a basis for knowledge, certainty, and community within the church.