"It is not for your sake, O house of Israel, that I am going to do these things, but for the sake of my holy name, which you have profaned among the nations where you have gone. I will show the holiness of my great name... Then the nations will know that I am the LORD, declares the Sovereign LORD, when I show myself holy through you before their eyes." Ezekiel 36:22-23
It is not for our sake, O people of God, that He has redeemed us for Himself. It is not for our glory or even for the intrinsic worth of humanity. But the Sovereign LORD has redeemed us for His name's sake. that He might show Himself holy through us before all nations. And if God is so holy and mighty, all I can say is, who am I that the Lord of all creation would choose to show His holiness through me, even in the sight of all the earth? This is a wondrous thing. It is all for His glory, and this is what alone satisfies a world-weary heart. This is our purpose, even God's ultimate glory.
I think with His greatness being ontologically prior to our worth and purpose (existence, basically), it shows wonderful tender kindness on God's part to create us with the high purpose of showing His worth. Put this way, He greatly exalted man at his creation by giving us the highest purpose He could. So creating us to live for Him and consumed by wonder at His splendor was, to begin with, a supremely loving act. Because He is prior to all things, sustains all things, and is infinitely, absolutely, consummately worthy of all good.
Thank You, God, for making me for You.