'First fruit' in the Bible

Reuben, you [are] my firstborn, my strength, and the firstfruit of my vigor, excelling in rank and excelling in power.

"Speak to the {Israelites}, and say to them, 'When you come to the land that I [am about] to give to you and you reap its harvest, then you shall bring a sheaf of the firstfruit of your harvest to the priest.

And on the first day you shall take for yourselves the first fruit of majestic trees, branches of palm trees and branches of a leafy tree and of a brook's poplar trees, and you shall rejoice {before} Yahweh your God [for] seven days.

But he shall acknowledge the firstborn son of the disliked [wife] {by giving} him a double portion of {all that he has}, for he [is] the firstfruit of his vigor; to him [is] the legal claim of the birthright.

then you shall take from the firstfruit of all the fruit of the ground that you harvest from your land that Yahweh your God [is] giving to you, and you shall put [it] in a basket, and you shall go to the place that Yahweh your God will choose to make his name to dwell there.

And now, look, I am bringing the firstfruit of the fruit of the ground that you gave to me, Yahweh,' and you shall place it {before} Yahweh your God, and you shall bow down {before} Yahweh your God.

Israel [was] holy to Yahweh, the first fruit of his produce. All [those who] ate it were held guilty; disaster came to them," {declares} Yahweh.'"