The Bible doesn't merely suggest; it states very clearly that the invisible ways of God's working can be clearly seen. Really? What invisible things of God have you seen? My suspicion is more than you realize! It's not that your eyes can't see. The problem is your mind isn't open. Those who don't see God at work around them aren't blind. They are simply attributing what they see around them to other causes. They may profess themselves to be wise. God calls them fools.

For the wrath of God is revealed from Heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness; because that which may be known of God is manifest in them; for God hath shewed it unto them. For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse: Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened. Professing themselves to be wise, they became fools. (Romans 1:18-22)

My prayer is that you won't be.