9 Nicodemus answered and said to Him, “How can these things be?” 10 Jesus answered and said to him, “Are you the teacher of Israel, and do not know these things?” (John 3:9–10, NKJV)
Nicodemus should have understood what Jesus said about being born again of water and the Spirit (John 3:1-8). After all, he was a teacher of Israel. Teachers who do not understand what they teach are poor educators. Uninformed and misinformed teachers harm their students and themselves. Therefore, teachers must be willing to accept instruction (2 Timothy 2:2; Romans 2:21). Scripture warns of those who stray and turn aside to idle talk, “desiring to be teachers of the law, understanding neither what they say nor the things which they affirm” (1 Timothy 1:7). Such “teachers of Israel” make confident assertions without comprehending what they say. These “teachers of Israel” make confident assertions without comprehending what they say. This sort of teacher accommodates his teaching to his audience (2 Timothy 4:3-4). This sort of teacher becomes the false teacher who brings in destructive heresies (2 Peter 2:1). Teachers of God’s word are commanded to take heed to themselves and to what they teach (1 Timothy 4:15-16). Teachers have the responsibility to teach the truth, and are held accountable by God for what they teach (James 3:1).