God placed them… Gen. 1:17

“God placed them in the expanse of the heavens to give light on the earth” (Genesis 1:17, NASB)

We find at the end of verse 15 that “it was so”, meaning all God spoke in verse 14 and 15 came to be. Verse 16 then details what God “made” (v 16) when “it was so” (v 15) – the lights and their roles from verse 14. In our verse now, verse 17, God shows that His exact will and purpose were carried out and fulfilled as described in verse 15.