Jesus never condoned sin. Jesus does not approve or sin. He died for the sins of mankind. If sin could have been condoned, He wouldn’t have died. The New Testament Bible teaches that the wages (salary, payment) for sin is death. It cannot be condoned but, rather, a price must be paid in death to nullify mankind’s sin. Jesus paid that price with His own death.

However, Jesus did not condemn those who sinned. He offered them grace and freedom from sin by dying on the cross for the sins of the world. His redeeming blood paid the price for sin.

The first chapter of the Gospel of John in the New Testament shows that Jesus came into the world to reveal the darkness of mankind – to shed His light on the sinful state of man. Sin cannot be hidden from God. He condemns sin but He does not condemn the sinner who turns to Him to receive His forgiveness.

When the adulterous woman was caught in her sin, Jesus did not condone her act. He forgave her sin but asked her to sin no more: "And Jesus said unto her, Neither do I condemn you: go, and sin no more." (John 8:2-11 NKJV).

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See here how Jesus hates sin.