How did the introduction of a new prayer book at St. Giles Church lead to Scottish resistance?

The introduction of a new prayer book in 1637, often referred to as "Laud’s Liturgy," provoked widespread Scottish resistance because it was a modified version of the English Book of Common Prayer imposed by royal prerogative alone.123

The attempt to force the Church of Scotland to conform to English liturgical practices and governance was spearheaded by King Charles I and his religious adviser, William Laud, the archbishop of Canterbury. The liturgy, along with a new Book of Canons, offended the Scots by its content and by the arbitrary manner of its introduction, which many feared was a step toward popery or a violation of Scottish religious and civil rights.421

The resistance began with riots at the Church of St. Giles in Edinburgh. This opposition quickly escalated into a national movement, culminating in the signing of the National Covenant on February 28, 1638, which pledged to resist these innovations and defend the Presbyterian faith. This defiance ultimately led to the Bishops’ Wars.2345