Song of Solomon 8
The Shulamite’s Brothers
8 We have a little sister,
And she has no breasts.
What shall we do for our sister
In the day when she is spoken for?
9 If she is a wall,
We will build upon her
A battlement of silver;
And if she is a door,
We will enclose her
With boards of cedar.

Commentary:
If she is a wall, we will build upon her… and if she is a door, we will enclose her: The brothers wisely decided to guide and help their sister according to her own character and choices. If she were like a wall that stood effectively against despoilers and exploiters, they would reward, encourage, and build upon her. If she were more like a door allowing unwise access, they would then restrict her freedoms in her own self-interest (we will enclose her).

If you can be trusted, more will be given. If you CANNOT be trusted, you will have no freedoms.