Beware the Leaven

Opening Verse

“Take heed and beware of the leaven of the Pharisees and of the Sadducees.”
Matthew 16:6 (KJV)

Introduction

Jesus spoke in ways that pierced the heart. When He warned about “leaven,” He wasn’t giving a baking lesson. He was exposing the quiet spread of false teaching, pride, and sin. That warning is louder than ever today. If we ignore it, we risk being slowly overtaken by corruption that looks religious but denies Christ’s power.

What Jesus Said About Leaven

Jesus said a little leaven leavens the whole lump (Galatians 5:9). That’s how sin works. That’s how pride spreads. That’s how false doctrine seeps in. The Pharisees were religious on the outside, but their hearts were hard. Their teachings looked clean but led people away from repentance and truth.

This leaven is still active. It’s in churches that downplay sin. It’s in pulpits that preach prosperity over purity. It’s in lives that look godly but don’t surrender to Christ. Jesus warns us, because a little lie can destroy a whole life.

What This Means

If we don’t deal with the “little” things—jealousy, pride, compromise—we’ll be filled with the leaven of self instead of the Spirit of God. We must examine what we’re listening to. We must ask, “Is this leading me to the cross, or is it just making me feel good?” If it doesn’t bring conviction, it’s likely leaven.

Jesus never spoke lightly. His warning to beware the leaven is a call to cut out anything that contaminates the Gospel. It’s a call to return to the truth, even if it offends. Better to be offended and saved than comfortable and lost.

Think About This

• What teachings have I accepted that aren’t grounded in Scripture?

• Have I allowed pride or spiritual laziness to rise in my heart?

• Am I following the voice of Christ or the voice of culture?

Prayer

Lord, open my eyes to any leaven I’ve allowed in my life. Show me where I’ve compromised, even a little. Burn away falsehood and cleanse me with Your truth. I want to follow You fully, not halfway. Make me holy. Make me bold. Keep me close to You, even when the world pulls away. In Jesus’ name, Amen.

Closing Verse

“Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us.”
1 Corinthians 5:7 (KJV)