Heard the voice

Blessed be the LORD, Because He has heard the voice of my supplications!

Psalms 28:6

The word supplication in Hebrew means 'cry for help or mercy', 'a humble request'. Supplication is the desperate form of prayer.
Supplication is lifted up when all else has failed.
This type of prayer called supplication is sounded like an echo before God's throne of mercy and grace.
It is not a small voice but a voice of desperation with an echo.
Supplication draws the attention of LORD God.
Blind Bartimaeus raised this type of voice of supplication when he called upon Jesus and said have mercy upon me.
Lord Jesus turned immediately and addressed his need.
Similarly, your voice of supplication will also be heard immediately, when you pray that prayer in desperation.
Draw the attention of God the Father from whom all blessings flow.
Pray the prayer of supplication to Him, so your voice will be heard and your need will be met by LORD GOD.