Do you know God's personal name?
“Who has ascended into heaven, or descended? .... .... Who has established all the ends of the earth?
What is His Name, and what is His Son's Name, if you know?” Proverbs 30:4
Both the writer of Proverbs and David knew His Name as the use of the divine Name 'Yahweh' was current in their time.
David used it in Psalm 110: 1-2
The Son was named for His earthly life by His Father as Yehoshua/Yeshua, translated Jesus (Matthew 1:21)
We know and use the Son's Name, but the Name for the godhead which still applies to the Father has fallen into disuse. Part of the reason for this has been the mistranslation from the original texts using 'LORD' (in capitals) for the divine name 'Yahweh', as well as man-made traditions prohibiting it's use. The translators have hidden the divine Name by using the substitute word 'LORD', which is not a translation of the original text, but a title and a substitute name.
If we use substitute titles, we are not using His true name. Isaiah 42: 8
Because the name represents the reputation of the one named, a name should be treated with respect. God's Names, in all of their forms, should be treated with enormous respect and reverence.
“You shall not take the Name of Yahweh your God in vain: for Yahweh will not hold him guiltless who takes His Name in vain.” Deuteronomy 5:11 Also Exodus 20: 7
What is it to take His Name 'in vain'?
To ignore, neglect to use the Name, or pass over its importance, in regarding it of no purpose for today, is taking it in vain. Just as using it so commonly as to be without the appropriate reverence and due honor.
To remove His Name from being used, is to bring it to nothing and make it without value. Yeshua/Jesus prayed, “Hallowed be Your Name”, it could be translated “Let your Name be sanctified” or treated as holy, with respect and honour. Matt. 6:9
There is a differentiation made from addressing Him as 'God' (elohim) in a generic sense, or in using titles to refer to Him, from actually using His Name. His Name should be exalted by being used in worship, prayer and praise and in speaking of His wondrous works.
His people are instructed to call upon His Name - See Psalm 105: 1
Yeshua/Jesus and the apostle John both spoke of knowing the Father and the Son as part of the experience of having eternal life (John 17: 3; 1 John 1: 1-3)
A personal relationship motivates a progression beyond formality to familiarity in addressing the other person. Using a title and a generic name for God is that of a non-personal, distant type of relationship.