PURE SINCERITY

"...let us draw near with a sincere heart in full assurance of faith, having our hearts sprinkled clean from an evil conscience and our bodies washed with pure water."Hebrews 10.22 NASB

You can be covered in sins, but your sincerity along with faith can open the door to the Throne of the Almighty.
It will not be automatic. You must come before Him, to then ask, be heard and answered.

Prayer

"Let your ear now be attentive, and your eyes open, that you may hear the prayer of your servant, which I pray before you now, day and night, for the children of Israel your servants..." Nehemiah 1:6

The Mount Sinai that trembled before the presence of God, will shake again at His power, when He goes down to receive the sacrifices of His people and to answer their petitions.