Does the Bible have anything to say about waste or being wasteful? Or, to approach this from a positive perspective, does the Bible have anything to say about being frugal or saving?

In the Bible it is mostly understood and implied that being wasteful is wrong more than being directly stated. However, notice Deuteronomy 20:19 and 20. This is Old Testament, but nonetheless consider the thrust of the thought behind the instructions given here. “When thou shalt besiege a city a long time, in making war against it to take it, thou shalt not destory the trees thereof by forcing an axe against them: for thou mayest eat of them, and thou shalt not cut them down (for the tree of the field is man’s life) to employ them in the siege: Only the trees which thou knowest that they be not trees for meat [food], thou shalt destroy and cut them down: and thou shalt build bulwarks against the city that maketh war with thee, until it be subdued.”

 Jesus told a parable involving waste. “And he said unto his disciples, There was a certain rich man, which had a steward; and the same was accused unto him that he had wasted his goods. And he called him, and said unto him, How is it that I hear this of thee? Give an account of thy stewardship; for thou mayest be no longer steward” (Luke 16:1,2). Irresponsible management of his master’s household and goods was looked upon as squandering and waste. He was to be held accountable.

 The miracle of the feeding of 5,000 men, not counting women and children, took place in their being fed by Christ from five loaves and two fish supplied by a little boy. in this story it is interesting that twelve small wicker baskets full of leftovers were taken up after dinner. The leftovers were not thrown away. In the feeding of the 4,000 on another occasion, it is said that seven big baskets were taken up. Later, after the feeding of the 5,000, the disciples would be criticized by the Pharisees from Jerusalem for eating bread with unwashed hands (perhaps referring to the very bread that was left over from the miracle) (Mark 7:1).

Here is what we need to notice. If God incarnate, who made heaven and earth, practiced frugality, not being wasteful, this must be important and a lesson for us. Let us practice frugality.

Luke 15:13
And not many days later, the younger son gathered everything together and went on a journey into a distant country, and there he squandered his estate with loose living.

John 6:12
When they were filled, He said to His disciples, “Gather up the leftover fragments so that nothing will be lost.”