Psalm 2 is a messianic psalm, meaning it speaks of a king, understood by Christians to be Jesus Christ, and his reign. Psalm 2:3, "“Let’s break their bonds apart, and cast their cords from us,” represents the rebellious reaction of earthly rulers against God's authority and the authority of His anointed king.

Here's a breakdown of what the verse implies:

"Let’s break their bonds apart...": The "bonds" or "chains" symbolize the restraints that God and His anointed one (the king, ultimately Jesus) place upon the nations. These restraints could be understood as God's laws, moral principles, or the obligations of submission to divine authority. The "Let's" implies a collective decision or conspiracy among the earthly rulers.

"...and cast their cords from us.": "Cords" is another term for bonds or ropes. They represent the same constraints as mentioned above. The act of "casting them off" signifies a complete rejection of God's rule and any obligation to obey Him or His appointed leader. They are refusing to be bound by God's authority.

In essence, Psalm 2:3 depicts a defiant rebellion against God's sovereignty and the authority of His chosen king. The earthly rulers are saying, "We don't want to be ruled by them. We reject their laws and their authority. We want to be free to do as we please."

Different interpretations:

Historically: This verse could refer to actual rebellions against Israelite kings who were considered to be God's anointed.
Prophetically: Christians see this verse as a foreshadowing of the rejection of Jesus Christ by the Jewish leaders and the Roman authorities.
Theologically: It represents the ongoing tension between God's kingdom and the kingdoms of this world, and the inherent human tendency to resist God's rule.

Therefore, Psalm 2:3 is a powerful statement about the nature of rebellion against God's rule and the desire for autonomy from divine authority.