'Productive' in the Bible

You will defeat every fortified city and every important city. You must chop down every productive tree, stop up all the springs, and cover all the cultivated land with stones."

They tore down the cities and each man threw a stone into every cultivated field until they were covered. They stopped up every spring and chopped down every productive tree. Only Kir Hareseth was left intact, but the slingers surrounded it and attacked it.

just as I was in my most productive time, when God's intimate friendship was experienced in my tent,

In a time of prosperity for the most productive areas of the province he will come and accomplish what neither his fathers nor their fathers accomplished. He will distribute loot, spoils, and property to his followers, and he will devise plans against fortified cities, but not for long.

Now if I am to go on living in the body, this will mean productive work for me, yet I don't know which I prefer: