2 Peter 2:21

for it had been better for them, not to have made any profession of the gospel, than after they have embraced it, to abandon the holy injunction, that was delivered to them.

Luke 12:47

but the servant, who knows his master's will, and prepares not himself, nor executes his orders, shall receive many stripes.

Romans 7:12

wherefore the law is holy; and the commandment holy, and just, and good.

Hebrews 6:4-6

For it is impossible for those who were once enlightned, and have received the heavenly gifts, communicated by the holy spirit,

Matthew 11:23-24

and thou, Capernaum, which art exalted to heaven, shalt be brought to destruction: for if the miracles which have been done in thee, had been done in Sodom, it would have subsisted even to this day.

Matthew 21:32

for John instructed you in the way of righteousness, and ye believed him not: but the publicans and the licentious believed him. and tho' you saw that, you did not yet repent, so as to believe him.

John 9:41

Jesus said to them, if you were blind, you would be excusable; but since you own that you see, you stand convicted.

John 15:22

if I had not appear'd, and inform'd them, they would have been innocent: but now they have no excuse for their sin.

1 Thessalonians 4:2

for you know the precepts we gave you in the name of the Lord Jesus.

James 4:17

he then that knows what is virtuous, and does not practise it, is a criminal.

Treasury of Scripture Knowledge

Summary

For it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them.

The way

Bible References

It had

Matthew 11:23
and thou, Capernaum, which art exalted to heaven, shalt be brought to destruction: for if the miracles which have been done in thee, had been done in Sodom, it would have subsisted even to this day.
Luke 12:47
but the servant, who knows his master's will, and prepares not himself, nor executes his orders, shall receive many stripes.
John 9:41
Jesus said to them, if you were blind, you would be excusable; but since you own that you see, you stand convicted.
John 15:22
if I had not appear'd, and inform'd them, they would have been innocent: but now they have no excuse for their sin.

The way

Matthew 21:32
for John instructed you in the way of righteousness, and ye believed him not: but the publicans and the licentious believed him. and tho' you saw that, you did not yet repent, so as to believe him.

Holy

Romans 7:12
wherefore the law is holy; and the commandment holy, and just, and good.
1 Thessalonians 4:2
for you know the precepts we gave you in the name of the Lord Jesus.

General references

Matthew 7:27
the rain descends, the flood rushes on, the winds blow, and beat upon the house: down it falls, and wide are its ruins.
Luke 14:30
this man, will they say, began to build, but wanted stock to finish.
Luke 17:32
remember Lot's wife.
1 Timothy 5:15
for some have already revolted to paganism.