Commentaries:
Robertson's Word Pictures (NT)
Twice in the week (div tou sabbatou). One fast a year was required by the law (Leviticus 16:29; Numbers 29:7). The Pharisees added others, twice a week between passover and pentecost, and between tabernacles and dedication of the temple.
I get (ktwmai). Present middle indicative, not perfect middle kekthmai (I possess). He gave a tithe of his income, not of his property.
Other Robertson's Word Pictures (NT) entries containing Luke 18:12:
Matthew 9:14
Matthew 9:15
John 20:1
Acts 13:2
1 Corinthians 16:2
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