Genesis 28:20-22

Then Jacob made a vow (promise), saying, “If God will be with me and will keep me on this journey that I take, and will give me food to eat and clothing to wear, and if [He grants that] I return to my father’s house in safety, then the LORD will be my God. This stone which I have set up as a pillar (monument, memorial) will be God’s house [a sacred place to me], and of everything that You give me I will give the tenth to You [as an offering to signify my gratitude and dependence on You].” [Deut 12:8-11; 14:22-26; 26:1-11]