'Uncertain' in the Bible

For if the war-horn gives out an uncertain note, who will get ready for the fight?

Give orders to those who have money and goods in this life, not to be lifted up in their minds, or to put their hope in the uncertain chances of wealth, but in God who gives us in full measure all things for our use;

For there is a division in his mind, and he is uncertain in all his ways.

And as he said in all his letters, which had to do with these things; in which are some hard sayings, so that, like the rest of the holy Writings, they are twisted by those who are uncertain and without knowledge, to the destruction of their souls.