Malachi 3:1, Malachi 3:2 Niv

Luke 1:76 NIV
And you, my child, will be called a prophet of the Most High; for you will go on before the Lord to prepare the way for him,

Malachi 4:5 NIV
“See, I will send the prophet Elijah to you before that great and dreadful day of the Lord comes.

Zechariah 13:9 NIV
This third I will put into the fire; I will refine them like silver and test them like gold. They will call on my name and I will answer them; I will say, ‘They are my people,’ and they will say, ‘The Lord is our God. ’”