Well, Deuteronomy 26, this is a fun one. Here's the gist: the Israelites are entering the Promised Land, and Moses tells them to give God the first fruits of their harvest as an offering. So basically, God is like, 'Hey, you want me to bring you into this land? No problem, just give me some of your crops every year.' And then, after they've made their offering, Moses tells them to recite a long, boring speech about all the awesome things God has done for them. In conclusion, God is like, 'Hey, if you want me to keep doing awesome stuff for you, just keep giving me your first fruits every year.' So there you have it, Deuteronomy 26: Offer God your first fruits and recite a long, boring speech.