How do we know God's covenant is everlasting?

The Bible assures us that God's covenant is eternal and unbreakable. Psalm 111:9 states that 'He hath commanded His covenant forever,' indicating the permanence of God's promise. This promise is echoed throughout Scripture, such as in Jeremiah 32:40 where God declares an everlasting covenant with His people, ensuring that He will not turn away from them. The security of this covenant rests not on human actions but wholly on God's faithfulness and character; as Hebrews 13:5 reassures us, He will never leave us nor forsake us.