Parable of the Mustard Seed and the Yeast (Luke 13:18 - 21) - NIV

1. God reaches out to us to make us understand his word and kingdom. (V.18)

2. God's word is based on the atom principle - starts minutely, grows and spreads extensively. (V.19)

3. God's word works through obstacles till it transforms the entire environment. (V.20,21)