Examples from Scripture (Proverbs 16:9 shows both, and, actually, most of these show both)
1) God circumventing man's will: (This is more than obvious every day, for everyone. 'You can't always get what you want.')
"A man’s heart plans his way,
But the Lord directs his steps." Proverbs 16:9
Isaiah 36:8 - 37:32 Too long to quote here —Sennacherib claims the Lord told him to attack, but then when he attempts to do so, he is thwarted by the Lord.
"...they...had hired Balaam to call a curse down on them. (Our God, however, turned the curse into a blessing.)" Nehemiah 13:2
2) God using man's will:
"A man’s heart plans his way,
But [it is] the Lord direct[ing] his steps." Proverbs 16:9 (paraphrased)
Isaiah 36:8 - 37:32 Too long to quote here —Sennacherib claims the Lord told him to attack, but then when he attempts to do so, he is thwarted by the Lord. Now why would God tell him to attack, which he was more than willing to do?
"For it was the LORD himself who hardened their hearts to wage war against Israel, so that he might destroy them totally, exterminating them without mercy, as the LORD had commanded Moses." Joshua 11:20
For evidence of the Lord being in control of man's will, read also Daniel 4:24-37, Exodus 9:12 and that whole story, and all through the Old Testament and particularly in the prophets, one king (whose name is not coming to me right now) to whom God speaks directly, is given success against Israel, and then punished for his arrogance, claiming his success was by his own doing.
We are all tools, servants, of God, whether by obedience or disobedience, just as God calls Nebuchadnezzar "my servant" (Jeremiah 27:6), whose will God both manipulated and used.