New Living Translation
But Abram replied, “O Sovereign LORD, how can I be sure that I will actually possess it?”

American Standard Version
And he said, O Lord Jehovah, whereby shall I know that I shall inherit it?

Berean Study Bible
But Abram replied, “Lord GOD, how can I know that I will possess it?”

Douay-Rheims Bible
But he said: Lord God, whereby may I know that I shall possess it?

English Revised Version
And he said, O Lord GOD, whereby shall I know that I shall inherit it?

King James Bible
And he said, Lord GOD, whereby shall I know that I shall inherit it?

World English Bible
He said, "Lord Yahweh, how will I know that I will inherit it?"

Young's Literal Translation
and he saith, 'Lord Jehovah, whereby do I know that I possess it?'

Genesis 15:8 Additional Translations ...