To be presumptuous means to form an opinion with little or no information or evidence.
It is very easy to be presumptuous when you are relating with the Lord. This is because, we so often presume that when something is logical and good, it is the will of God.
When Peter told Jesus not to go to the cross but to continue his ministry on earth, it sounded like a good idea but Jesus saw it as a satanic attack and rebuked him.
I am always impressed with David’s complete dependence on the Holy Spirit in decision making. When Saul died it seemed logical for David to march to Jerusalem and claim the throne. After all, Israel knew that he, David, was going to be the next king and he had been anointed by the prophet Samuel to be king.
2 Samuel 2:1
“And it came to pass after this, (that is after Saul had died) that David enquired of the Lord, saying, Shall I go up into any of the cities of Judah? And the Lord said unto him, Go up. And David said, Whither shall I go up? And he said, Unto Hebron.”
God first made David ruler over a single tribe; Judah with Hebron as his headquarters. He did this for seven years before ruling all Israel.
Let us seek the face of God even in the face of the obvious and logical to prevent being presumptuous.