Ezekiel 47:3-5

And when the man that had the line in his hand went forth eastward, he measured a thousand cubits, and he brought me through the waters; the waters were to the ancles. When the man that had the line in his hand went forth eastward, he measured a thousand cubits, and he brought me through the waters; the waters were to the ancles. Again he measured a thousand ... the waters were to the loins. Afterward ... it was a river that I could not pass over ... waters to swim in. Searching into the things of God, we find some easy to understand, as the water up to the ancles; others more difficult, which require a deeper search, as the waters up to the knees or loins; others beyond our reach, of which we can only adore the depth ( ).