If you are a materialist, can you enter the Kingdom of Heaven?
No man can serve two masters. Either he will hate one and love the other, or he will hold to the first, and despise the second. You cannot serve both God and Mammon.
God is virtue and goodness incarnate. Mammon is the corrupting influence of money. Jesus is saying that if you seek material wealth, you will be corrupted by greed. He continues:
Take no thought for your life, what you will eat or drink, your body, or what you will wear. Life is more than meat, and the body more than clothing. The birds neither plant crops, harvest, nor store, yet heaven feeds them. Are you not much more important than they are? Who by thinking can make themselves a foot taller? And why worry about clothing? Consider the flowers of the field. They do not toil, neither do they spin, and yet even King Solomon in all his glory was not arrayed like they are. If God clothes the grass of the field, which is here today, but tomorrow is cast into the oven, will he not clothe you? Heaven knows that you need these things.
After this exhortation to let go of all worry about the material world, he tells you what is truly important, and echos the teachings of Buddha by advising you to live in the moment:
First seek the Kingdom of Heaven, and righteousness; when you do, all these things will be given to you. Don’t worry about tomorrow. Tomorrow will take care of itself. There is sufficient evil deal with today.
Image By Evelyn De Morgan – , Public Domain, https://commons.wikimedia.org/w/index.php?curid=1147026