God is the One who always knows whatever I do, say, think, or feel:

You have searched me, Lord,
    and you know me.
You know when I sit and when I rise;
    you perceive my thoughts from afar.
You discern my going out and my lying down;
    you are familiar with all my ways.
Before a word is on my tongue
    you, Lord, know it completely.
You hem me in behind and before,
    and you lay your hand upon me.
Such knowledge is too wonderful for me,
    too lofty for me to attain.

Wherever I go, God goes with me. There is no place where God is not:

Where can I go from your Spirit?
    Where can I flee from your presence?
If I go up to the heavens, you are there;
    if I make my bed in the depths, you are there.
If I rise on the wings of the dawn,
    if I settle on the far side of the sea,
even there your hand will guide me,
    your right hand will hold me fast.
If I say, “Surely the darkness will hide me
    and the light become night around me,”
even the darkness will not be dark to you;
    the night will shine like the day,
    for darkness is as light to you.

Even before I was born, my life was complete in the mind of God:

For you created my inmost being;
    you knit me together in my mother’s womb.
I praise you because I am fearfully and wonderfully made;
    your works are wonderful,
    I know that full well.
My frame was not hidden from you
    when I was made in the secret place,
    when I was woven together in the depths of the earth.
Your eyes saw my unformed body;
    all the days ordained for me were written in your book
    before one of them came to be.
How precious to me are your thoughts, God!
    How vast is the sum of them!
Were I to count them,
    they would outnumber the grains of sand—
    when I awake, I am still with you.

Yet I so quickly forget that I am safe, loved, and guided—believing the lie that others can be threats, to me and to God:

If only you, God, would slay the wicked!
    Away from me, you who are bloodthirsty!
They speak of you with evil intent;
    your adversaries misuse your name.
Do I not hate those who hate you, Lord,
    and abhor those who are in rebellion against you?
I have nothing but hatred for them;
    I count them my enemies.

I would do well, with David, to seek to remember all that I’ve forgotten:

Search me, God, and know my heart;
    test me and know my anxious thoughts.
See if there is any offensive way in me,
    and lead me in the way everlasting.