1 Corinthians 1:23-24

but we preach Christ crucified, to the Jews indeed an offence, and to the Greeks folly;

Revelation 2:17

He that hath an ear, let him hear what the Spirit saith unto the churches, To him that overcometh will I give to eat of the hidden manna, and I will give him a white pebble, and upon the pebble a new name inscribed, which no man knoweth except the person who receiveth it.

Treasury of Scripture Knowledge

Summary

And the manna was as coriander seed, and the colour thereof as the colour of bdellium.

Bible References

The manna

1 Corinthians 1:23
but we preach Christ crucified, to the Jews indeed an offence, and to the Greeks folly;
Revelation 2:17
He that hath an ear, let him hear what the Spirit saith unto the churches, To him that overcometh will I give to eat of the hidden manna, and I will give him a white pebble, and upon the pebble a new name inscribed, which no man knoweth except the person who receiveth it.