I have come to realize that there are basically two ways to interpret God's silence. The "Regulative Principle" where anything not specifically authorized is condemned, and the "Normative Principle," where anything not specifically prohibited, or prohibited by a broader Biblical principle, is allowed.

A big one in congregations that use the label "Church of Christ," at least in some areas, is over "singing." "Since God says sing, that prohibits musical instruments; only vocals are allowed since God doesn't mention a piano." There are some flaws with that. For example, Ephesians 5 and Colossians 3 are talking about daily living, not a "worship service," which God never mentions. Also, it says to sing three types of songs (psalms, hymns, and spiritual songs), and a psalm is accompanied by instruments.

But regarding the principle, does the instruction to sing forbid musical instruments? It would seem not. "I will also praise You with a harp, Even Your truth, O my God; To You I will sing praises with the lyre, O Holy One of Israel." (Psalm 71:22) If we listen to KY Tunstall's "Black Horse &  the Cherry Tree," we understand that she's singing a song, though her guitar is also in use. We don't say, "Man I wish she'd sing! Instead she's saying words while playing a guitar."