Seeing the people, He felt compassion for them, because they were distressed and dispirited like sheep without a shepherd.  Then He said to His disciples, "The harvest is plentiful, but the workers are few.  Therefore beseech the Lord of the harvest to send out workers into His Harvest." ~ Matthew 9:36-38

"When I say to the wicked, "You will surely die," and you do not warn him or speak out to warn the wicked from his wicked way that he may live, that wicked man shall die in his iniquity, but his blood I will require at your hand. Yet if you have warned the wicked and he does not turn from his wickedness or from his wicked way, he shall die in his iniquity; but you have delivered yourself."   Ezekiel 3:18-19