What does the Bible say about having a hearing ear?

In Revelation 3:6, the phrase 'He that hath an ear, let him hear what the Spirit saith unto the churches' underscores the necessity of having a spiritual ear that discerns the voice of God. This concept is pivotal throughout Scripture, as it denotes not merely hearing in a physical sense but understanding and responding to God's Word with faith. By nature, our ears are closed to spiritual truths due to our sinful state, but God opens the ears of His people, enabling them to perceive and embrace His guidance and instruction.