Romans 14:2

for one believeth that he may eat any food; another, who is weak, liveth upon herbs.

Romans 14:14

I know and have been taught by the Lord Jesus, that nothing is unclean of itself: only to him that thinketh any thing unclean, to him it is unclean.

Romans 14:22-23

Thou who hast faith, have it to thyself before God: and happy is he that condemneth not himself in what he alloweth himself to do.

1 Corinthians 10:25

Eat then whatever is sold in the shambles, asking no questions for conscience sake:

Galatians 2:12

For before certain men came from James, he did eat with the gentiles; but when they were come, he withdrew and separated himself, fearing those of the circumcision.

1 Timothy 4:4

For every creature of God is good, and nothing to be rejected, if it be received with thanksgiving:

Titus 1:15

To the pure indeed all things are pure; but to the polluted and unbelieving nothing is pure; even their mind and conscience is polluted.

Hebrews 9:10

relating only to meats and drinks, and different washings, and such carnal ordinances as were required till the time of reformation.

Hebrews 13:9

be not then carried about by various and strange doctrines; for it is good that the heart be established by grace, and not in meats, in which those that have been most exact, have not profited by them.

Treasury of Scripture Knowledge

Summary

For one believeth that he may eat all things: another, who is weak, eateth herbs.

Another

Bible References

That

Romans 14:14
I know and have been taught by the Lord Jesus, that nothing is unclean of itself: only to him that thinketh any thing unclean, to him it is unclean.
1 Corinthians 10:25
Eat then whatever is sold in the shambles, asking no questions for conscience sake:
Galatians 2:12
For before certain men came from James, he did eat with the gentiles; but when they were come, he withdrew and separated himself, fearing those of the circumcision.
1 Timothy 4:4
For every creature of God is good, and nothing to be rejected, if it be received with thanksgiving:
Titus 1:15
To the pure indeed all things are pure; but to the polluted and unbelieving nothing is pure; even their mind and conscience is polluted.
Hebrews 9:10
relating only to meats and drinks, and different washings, and such carnal ordinances as were required till the time of reformation.
Hebrews 13:9
be not then carried about by various and strange doctrines; for it is good that the heart be established by grace, and not in meats, in which those that have been most exact, have not profited by them.

Another

Romans 14:22
Thou who hast faith, have it to thyself before God: and happy is he that condemneth not himself in what he alloweth himself to do.