We need an eye exam. What we need is to see what's right before our eyes and then allow that to change the way we think and feel. The Israelites had seen plenty of evidence God was with them. They had seen the plagues, the parting of the Red Sea, the drowning of Pharaoh's army, the turning of bitter water sweet, and manna. Now they needed water after following the commandment of God and they get angry with Moses and demand he provide it. As Moses astutely observes, they are questioning whether God is still with them. We do the same thing. When Jesus begins teaching in the temple, the rulers, the authorities, ask by what authority Jesus teaches and heals. The implication is they alone have the ability to grant Him this authority and they didn't, so... Jesus refuses an answer and instead points to John the Baptist who had pointed to Him. The authority is the same, God, and there's ample proof. Finally, Paul tells us to have the mind of Christ, considering others more significant than ourselves and acting on that idea. He gives us evidence to say it's the way God intends by pointing to the exaltation of Jesus because He was obedient unto death. What more do you need to see to know these things and act on them?