By this that I have said, thou mayest in some measure see into this image of sin, and perceive how much it hinders thee. The Gospel saith, how that Abraham spake to the rich man that was buried in hell, on this wise: There is betwixt us and you a great chaos; that is to say, a thick darkness betwixt thee and us, that we cannot come to thee, nor thou to us. This dark image in thy soul and mine may be in like manner called a chaos, that is, a great darkness, for it letteth us that we cannot come to Abraham, which is Jesus, and it letteth Him, that He will not come to us. (John Climacus)

Most modern translations refer to a "great chasm" rather than a great chaos. Climacus almost certainly mis-read his Greek text. Chasm is χάσμα. Chaos is χάος.

Climacus might also have considered chasm and chaos as near synonyms. Each include the sense of there being an absense. For the Greeks chaos is - among other meanings - unorganized potential.

Abraham, the poor man Lazarus, the rich man, and the rich man's brothers each had the same potential for God's grace.

Abraham and Lazarus chose to organize their potential around God's intent. The rich man and his brothers chose to organize their potential around wealth and fine living. Chaos was organized, but with very different results.

The image is of the Valles Marinaris on Mars. This is the largest chasm in the earth's solar system.