Jehovah’s Witnesses are a teaching and preaching organization.
However, history shows that teachings do not make people self-motivated to do good or to be spiritual. (Mathew 23:37, 38) Hence God will not choose an organization to serve no purpose! In fact, He simply denounces preachers, teachers and miracle-performers. (Mathew 7:21-23)
Prima facie, the viable and wise option, the only thing that can make one self-motivated to do good or to be spiritual is “Sow and Reap” principle (Galatians 6:7) which God ensured to run as an unmistakable thread from the beginning till the end of the Bible. (Genesis 4:10-12; 9:6; Deuteronomy 24:16; 1 Kings 8:32; Job 34:11; Psalm 62:12; Isaiah 3:10-11; Jeremiah 31:29-30; Ezekiel 18:20 ; Habakkuk 2:3, 4; Mathew 16:27; Romans 14:12; 1 Peter 1:17; Revelation 2:23; 20:12; 22:12-15)
In fact the so-called teachers often do disservice, interpolating things which will be pleasing to the ears of the listeners! (Acts 20:28-30; 1 Thessalonians 5:20-22; 2 Timothy 4:3) When the Bible Canon was fixed centuries later, scrolls that had already contained some of the weeds/unhealthy teachings of those early centuries were also included! Jesus graphically picturized this very situation through one of his illustrations! (Mathew 13:25, 26, 30) Hence you will find very healthy, solid, and self-explanatory teachings and their opposites in the Bible!
This is one sample:
Be imitators of God who does good to both “the evil and the good.” (Mathew 5:44-48; Compare Deuteronomy 1:17 and Romans 2:11) (Contrary to this very true, self-explanatory truth, this unhealthy teaching: “Shun those who are not of our sort; should not even greet them” was introduced later. (Compare 2 John 10)
This type of thoughtless interpolations gave rise to over 41,000 sects!