# Behold!

"Listen!" or "Pay attention to what I am about to tell you!"

# I will be glorified in your midst

"I will reveal my glory among you"

# they will know ... within her ... in her

"you will know ... within you ... in you". Here "they" and "her" refer to the people of Sidon.

# know that I am Yahweh

"understand that I am Yahweh, the one true God". Yahweh implies that they will know that he is the one true God who has supreme authority and power. See Ezekiel 6:7.

# when I execute judgments within her

"when I judge her" or "when I punish her the way she deserves"

# I will be shown to be holy in her

"I will show that I am holy when I punish her"