According to Strongs H3050, there are 48 occurrences in the Hebrew Bible where God's name is rendered as יָהּ (Yah). Most of these are found in the Psalms. This suggests it is a poetic form. ...
Genesis 31:13 seems to create difficulties in translation. Most English Bibles translate the Masoretic text as saying "God of Bethel", as shown here: Genesis 31:13 (KJV): I am the God of Bethel, ...