God is always ready to listen anytime you are ready to talk to him. Prayer is simply talking with God.
God will always hear our prayers and will answer them if we address Him with faith and real intent. God is equally well able to hear your silent prayer than a prayer out loud. God doesn’t stop listening to anyone. He loves when we communicate with Him and He listens to everything we have to say, no matter how long or repetitive. God speaks through thoughts and feelings. God ordains prayer as a means to accomplish His will.
Chronicles 7:14
If my people who are called by my name humble themselves, and pray and seek my face and turn from their wicked ways, then I will hear from heaven and will forgive their sin and heal their land.
God will hear us when we are repentant and confess our sins before Him. God desires our communication with Him, God fuels the radical part of our faith.
I call on you, my God, for you will answer me; turn your ear to me and hear my prayer” (Psalm 17:6).
