Yehezkiel 44:30

44:30 The first of all the first fruits and all contributions of any kind ¹  will be for the priests; you will also give to the priest the first portion of your dough, so that a blessing may rest on your house.

Roma 11:16

11:16 If the first portion ²  of the dough offered is holy, then the whole batch is holy, and if the root is holy, so too are the branches. ³ 

[44:30]  ¹ tn Heb has in addition “from your contributions,” a repetition unnecessary in English.

[11:16]  ² tn Grk “firstfruits,” a term for the first part of something that has been set aside and offered to God before the remainder can be used.

[11:16]  ³ sn Most interpreters see Paul as making use of a long-standing metaphor of the olive tree (the root…the branches) as a symbol for Israel. See, in this regard, Jer 11:16, 19. A. T. Hanson, Studies in Paul’s Technique and Theology, 121-24, cites rabbinic use of the figure of the olive tree, and goes so far as to argue that Rom 11:17-24 is a midrash on Jer 11:16-19.