The Lord is the One who makes things come true
" Commit your way to the LORD; trust in him and he will do this:." Psalm 37: 5
God is one who does great things
To him who alone does great wonders, His love endures forever. Psalm 136:4
The Father and the Son
No one would have been surprised had this saying appeared somewhere in the Gospel of John. The language is characteristically Johannine