How? “Through the knowledge of” How? “Through the knowledge of” “and this is eternal life to know the one and only true God and His Son.” Especially leaders, study and learn about the ones (Father, Son, Holy Spirit, disciples, etc…) we are teaching and preaching about.
2 Peter 1:3–11 (NKJV)3 as His divine power has given to us all things that pertain to life and godliness, through the knowledge of Him who called us by glory and virtue, 4 by which have been given to us exceedingly great and precious promises, that through these you may be partakers of the divine nature, having escaped the corruption that is in the world through lust. 5 But also for this very reason, giving all diligence, add to your faith virtue, to virtue knowledge, 6 to knowledge self-control, to self-control perseverance, to perseverance godliness, 7 to godliness brotherly kindness, and to brotherly kindness love. 8 For if these things are yours and abound, you will be neither barren nor unfruitful in the knowledge of our Lord Jesus Christ. 9 For he who lacks these things is shortsighted, even to blindness, and has forgotten that he was cleansed from his old sins. 10 Therefore, brethren, be even more diligent to make your call and election sure, for if you do these things you will never stumble; 11 for so an entrance will be supplied to you abundantly into the everlasting kingdom of our Lord and Savior Jesus Christ.
John 17:3 (NKJV)3 And this is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent.
James 3:1 (NKJV)1 My brethren, let not many of you become teachers, knowing that we shall receive a stricter judgment.