السَّلَامُ عَلَيْكُمْ وَرَحْمَةُ الله احسن الله اليكم 1. What is the ruling on the phrase "Third time is the charm" 2. Are the phrases "On God" and "I swear to God" considered as making oaths and have an expiation if you break it?

On the first, do not fall into waswas over an expression. Even if you say it merely as a manner of speech, you should stay away from such expressions and not entertain them again. On the second, yes, saying I swear to God is a real oath by Allah in any language. If you take it deliberately and break it, the expiation is to feed or clothe ten poor persons or free a slave, and whoever cannot fasts three days (al Maidah 89). If it only ran on your tongue without intending an oath, there is nothing on you.