The impassability of God can be best explained by the 1689 Confession of Faith in Chapter 2: Of God and the Holy Trinity. It describes God as a God without body, without parts, and without passions. He is a spirit and invisible. He is one and all sufficient. He is objective in His dealings with us and not a God of passions. Everything flows out of His essence and attributes. So often we as parents can react to our children based on how we are feeling, but God is not that way.

We always know how God will be when we approach Him.

The impassability of God (that He is without passion) secures and gives us assurance of our salvation because we know that God is not going to react to us any differently today than yesterday. But it also means that God is not going to be in some kind of "good mood" in the future and will allow those outside of Christ to enter into heaven. He acts according to what is just, what is right, and what is true. He gives to us according to what we deserve, whether that deservedness is found in Jesus Christ or in our own hands because we have refused Jesus Christ.

The impassibility of God can be best explained by the 1689 Confession of Faith in chapter 2 of God in the Holy Trinity, where it describes God as a God without body, without parts, and without passions. Because He is a spirit. He is invisible. And so God does not have a body like us, nor is He made of parts put together like we are. He's one.

He's all sufficient and one, but neither is he a God of passions. He's not subjective in His dealings with us. He is objective. Everything flows out of His essence and His attributes. So often, we as parents can react to our children out of how we're feeling.

Sometimes our children can know when or when not to ask us a question or approach us because of our sins, because of our own propensity to reacting passionately. But God is not that way. We know how God will be when we approach Him because He's a God of objectivity and not subjectivity because it all flows from His essence and from His attributes. The impassibility of God, that He is without passion, secures and gives us assurance of our salvation because we know that God is not going to react to us today any differently than yesterday. But it also means that God's not going to be in some good mood in the future and allow those who are outside of Christ to enter into heaven.

Because God is a God without passions, He acts according to what is just, what is right, what is true, and He gives to us according to what we deserve, whether that deservingness is found in Jesus Christ or whether it's found in our own hands because we have refused Jesus Christ. You