What is the significance of the mustard seed in the Bible?

my grandma bought me a necklace a long time ago and there was a paper in it that talked about the mustard seed and your faith, and i can’t seem to find it now.
the necklace is gold and its a white heart and in the center is a mustard seed.
i know that there is [...]

Why does the Bible incorrectly state that the mustard seed is the smallest?

there are many other seeds that are smaller, for example orchid seeds are almost microscopic
Matt 13:31-32: “the kingdom of heaven is like to a grain of mustard seed which…is the least of all seeds, but when it is grown is the greatest among herbs and becometh a tree.”
*bonus error: mustard plants are not ‘trees”

The Mustard in the Bible versus the Quran (2)

The mustard is mentioned five times in the Bible, all of them are in the New Testament being not mentioned at all in the Old Testament. 
The mustard is mentioned two times in the Quran.
Jesus rebuked the demon, and it came out of the boy, and he was healed from that moment.
Then the [...]

The mustard in the Bible versus the Quran (1)

The mustard is mentioned five times in the Bible, all of them are in the New Testament being not mentioned at all in the Old Testament. 
The mustard is mentioned two times in the Quran.
 
Matthew, Mark and Luke give the Parables of the Mustard Seed; they said that the kingdom of heaven is like [...]

In the Bible versus the Quran: the Mustard tree is the largest of all garden plants

The mustard is mentioned five times in the Bible, all of them are in the New Testament being not mentioned at all in the Old Testament. 
The mustard is mentioned two times in the Quran.
 
Matthew, Mark and Luke give the Parables of the Mustard Seed; they said that the kingdom of heaven is like [...]

In the Bible: Has any Christian a Faith as Small as a Mustard Seed?

The mustard is mentioned five times in the Bible, all of them are in the New Testament being not mentioned at all in the Old Testament. 
The mustard is mentioned two times in the Quran.
Jesus rebuked the demon, and it came out of the boy, and he was healed from that moment.
Then the [...]

In the Bible versus the Quran: the kingdom of heaven is like a mustard seed

The mustard is mentioned five times in the Bible, all of them are in the New Testament being not mentioned at all in the Old Testament. 
The mustard is mentioned two times in the Quran.
 
Matthew, Mark and Luke give the Parables of the Mustard Seed; they said that the kingdom of heaven is like [...]

In the Bible versus the Quran: the Mustard seed is the smallest of all the seeds on earth

The mustard is mentioned five times in the Bible, all of them are in the New Testament being not mentioned at all in the Old Testament. 
The mustard is mentioned two times in the Quran.
 
Matthew, Mark and Luke give the Parables of the Mustard Seed; they said that the kingdom of heaven is like [...]