“[…] Set your heart and see with your eyes, and with your ears hear all that I am speaking with you regarding all the statutes of the house of Jehovah and regarding all its laws […].”
~Ezekiel 44:5, fn.

When Jehovah God asks us to ‘set our heart’ on his instructions, he is asking us to pay wholehearted attention.
We must listen to and obey God with the proper motivation- one born of our love toward him and a sincere desire to please him. (Matt. 22:37)
In Ezekiel’s day, the chieftains had been extorting the people of Israel through a feigned form of worship. (Eze. 45:9,10)
Through the prophetic vision God granted Ezekiel, we are given hope that it is plausible for a group of people to sincerely love God and carry out a united form of religious worship that is not hypocritical. (Eze. 43:9,27)
We must individually examine our own hearts to see if we meet God’s standards of pure worship. (Ps. 139:23,24)