We know that knowledge puffs up and that love builds up (1 Corinthians 8).
Still, what we prefer to offer to unbelievers and new believers is information instead of the costly commodity called agape. What makes new believers into disciples is fitting into a family through real relationships. They need accountability through relationships. They need to find opportunities to serve through relationships.
What best draws unbelievers to believe is a relationship with a believer through which they can discover the presence and person of Jesus, raised from the dead and enthroned on a human heart.
You are going to spend your life on something. Actually, some people will spend theirs on nothing, but not you. Your life is going to purchase something. Spend it on things that have the best return on the investment. Eternal things. People.