The devil does speak and it does matter how you respond. Your responsibility is to SPEAK ONLY THE WORD OF GOD BACK. You are not to entertain him or allow him to infiltrate your mind.

Ignoring the devil sounds good in theory but we don’t see Jesus doing that in scripture either. There is a reason this encounter is written in scripture. Pay attention to how Jesus responds to the same devil you and I are/will be tempted by:

The devil said to Him, “If you are the Son of God, tell this stone to become bread.”

JESUS ANSWERED, “It is written: ‘Man shall not live on bread alone.

And he (the devil) said to him, “I will give you all their authority and splendor; it has been given to me, and I can give it to anyone I want to. If you worship me, it will all be yours.”

JESUS ANSWERED: “It is written: ‘Worship the Lord your God and serve him only.”

“If you are the Son of God,” he (the devil) said, “throw yourself down from here. For it is written: “‘He will command his angels concerning you to guard you carefully; they will lift you up in their hands, so that you will not strike your foot against a stone.”

JESUS ANSWERED (instead of allowing the devil to gaslight Him making Him doubt what it is written) : “It is said: ‘Do not put the Lord your God to the test.”

Luke 4:1-12