1 Cor 9:16, Mt 25:24-30

In the Old Testament, after the Arameans fled, lepers went into the tents of the Arameans to eat and drink and hide their gold and silver treasures. The lepers said to each other that if they did not tell the Israelites that the Arameans had fled, punishment would be on them. (2 Kings 7:8-9)

2 Kings 7:8 And when these lepers came to the uttermost part of the camp, they went into one tent, and did eat and drink, and carried thence silver, and gold, and raiment, and went and hid it; and came again, and entered into another tent, and carried thence also, and went and hid it. 9 Then they said one to another, We do not well: this day is a day of good tidings, and we hold our peace: if we tarry till the morning light, some mischief will come upon us: now therefore come, that we may go and tell the king's household.

Woe to us if we do not preach the gospel that Jesus is the Christ. (1 Corinthians 9:16)

1 Corinthians 9:16 For though I preach the gospel, I have nothing to glory of: for necessity is laid upon me; yea, woe is unto me, if I preach not the gospel!

Woe to us if we receive the gospel and keep it without preaching it. (Mt 25:24-30)

Mt 25:24 Then he which had received the one talent came and said, Lord, I knew thee that thou art an hard man, reaping where thou hast not sown, and gathering where thou hast not strawed: 25 And I was afraid, and went and hid thy talent in the earth: lo, there thou hast that is thine. 26 His lord answered and said unto him, Thou wicked and slothful servant, thou knewest that I reap where I sowed not, and gather where I have not strawed: 27 Thou oughtest therefore to have put my money to the exchangers, and then at my coming I should have received mine own with usury. 28 Take therefore the talent from him, and give it unto him which hath ten talents. 29 For unto every one that hath shall be given, and he shall have abundance: but from him that hath not shall be taken away even that which he hath. 30 And cast ye the unprofitable servant into outer darkness: there shall be weeping and gnashing of teeth.