Keluaran 16:18

16:18 When ¹  they measured with an omer, the one who gathered much had nothing left over, and the one who gathered little lacked nothing; each one had gathered what he could eat.

Keluaran 30:15

30:15 The rich are not to increase it, ²  and the poor are not to pay less than the half shekel when giving ³  the offering of the Lord, to make atonement ⁴  for your lives.

[16:18]  ¹ tn The preterite with the vav (ו) consecutive is subordinated here as a temporal clause.

[30:15]  ² tn Or “pay more.”

[30:15]  ³ tn The form is לָתֵת (latet), the Qal infinitive construct with the lamed preposition. The infinitive here is explaining the preceding verbs. They are not to increase or diminish the amount “in paying the offering.” The construction approximates a temporal clause.

[30:15]  ⁴ tn This infinitive construct (לְכַפֵּר, lÿkhapper) provides the purpose of the giving the offering – to atone.