'Standing' in the Bible

"Count off seven weeks from when the sickle is first put to standing grain.

When you enter your countrymen's grain fields, you may pluck the grain with your hand, but don't put a sickle to his standing grain."

"All of you are standing today in the presence of the LORD your God the heads of your tribes, your elders, your magistrates, all the men of Israel,

but with whoever is here with us standing in the presence of the LORD our God today, as well as with those who aren't here with us today."