1 Corinthians 1:23-24

but we preach Christ crucified; to the Jews, indeed, a stumbling-block, and to the Greeks, foolishness:

Revelation 2:17

He that has an ear, let him hear what the Spirit says to the churches. To him that overcomes, I will give of the hidden manna; and I will give him a white stone, and on the stone a new name written, which no one knows but he that receives 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, a stumbling-block, and to the Greeks, foolishness:
Revelation 2:17
He that has an ear, let him hear what the Spirit says to the churches. To him that overcomes, I will give of the hidden manna; and I will give him a white stone, and on the stone a new name written, which no one knows but he that receives it.