GOD'S WORD® Translation
All streams flow into the sea, but the sea is never full. The water goes back to the place where the streams began in order to [start] flowing again.

American Standard Version
All the rivers run into the sea, yet the sea is not full; unto the place whither the rivers go, thither they go again.

Berean Study Bible
All the rivers flow into the sea, yet the sea is never full; to the place from which the streams come, there again they flow.

Douay-Rheims Bible
All the rivers run into the sea, yet the sea doth not overflow: unto the place from whence the rivers come, they return, to flow again.

English Revised Version
All the rivers run into the sea, yet the sea is not full; unto the place whither the rivers go, thither they go again.

King James Bible
All the rivers run into the sea; yet the sea is not full; unto the place from whence the rivers come, thither they return again.

World English Bible
All the rivers run into the sea, yet the sea is not full. To the place where the rivers flow, there they flow again.

Young's Literal Translation
All the streams are going unto the sea, and the sea is not full; unto a place whither the streams are going, thither they are turning back to go.

Ecclesiastes 1:7 Additional Translations ...